256917360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 320

約数和(自身を含む): 974223360

約数和(自身を除く): 717306000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 61, 69, 70, 80, 84, 92, 105, 109, 112, 115, 120, 122, 138, 140, 161, 168, 183, 184, 210, 218, 230, 240, 244, 276, 280, 305, 322, 327, 336, 345, 366, 368, 420, 427, 436, 460, 483, 488, 545, 552, 560, 610, 644, 654, 690, 732, 763, 805, 840, 854, 872, 915, 920, 966, 976, 1090, 1104, 1220, 1281, 1288, 1308, 1380, 1403, 1464, 1526, 1610, 1635, 1680, 1708, 1744, 1830, 1840, 1932, 2135, 2180, 2289, 2415, 2440, 2507, 2562, 2576, 2616, 2760, 2806, 2928, 3052, 3220, 3270, 3416, 3660, 3815, 3864, 4209, 4270, 4360, 4578, 4830, 4880, 5014, 5124, 5232, 5520, 5612, 6104, 6405, 6440, 6540, 6649, 6832, 7015, 7320, 7521, 7630, 7728, 8418, 8540, 8720, 9156, 9660, 9821, 10028, 10248, 11224, 11445, 12208, 12535, 12810, 12880, 13080, 13298, 14030, 14640, 15042, 15260, 16836, 17080, 17549, 18312, 19320, 19642, 19947, 20056, 20496, 21045, 22448, 22890, 25070, 25620, 26160, 26596, 28060, 29463, 30084, 30520, 33245, 33672, 34160, 35098, 36624, 37605, 38640, 39284, 39894, 40112, 42090, 45780, 46543, 49105, 50140, 51240, 52647, 53192, 56120, 58926, 60168, 61040, 66490, 67344, 70196, 75210, 78568, 79788, 84180, 87745, 91560, 93086, 98210, 99735, 100280, 102480, 105294, 106384, 112240, 117852, 120336, 132980, 139629, 140392, 147315, 150420, 152927, 157136, 159576, 168360, 175490, 183120, 186172, 196420, 199470, 200560, 210588, 232715, 235704, 263235, 265960, 279258, 280784, 294630, 300840, 305854, 319152, 336720, 350980, 372344, 392840, 398940, 421176, 458781, 465430, 471408, 526470, 531920, 558516, 589260, 601680, 611708, 698145, 701960, 744688, 764635, 785680, 797880, 842352, 917562, 930860, 1052940, 1070489, 1117032, 1178520, 1223416, 1396290, 1403920, 1529270, 1595760, 1835124, 1861720, 2105880, 2140978, 2234064, 2293905, 2357040, 2446832, 2792580, 3058540, 3211467, 3670248, 3723440, 4211760, 4281956, 4587810, 5352445, 5585160, 6117080, 6422934, 7340496, 8563912, 9175620, 10704890, 11170320, 12234160, 12845868, 16057335, 17127824, 18351240, 21409780, 25691736, 32114670, 36702480, 42819560, 51383472, 64229340, 85639120, 128458680, 256917360]

約数ペア:

[(1, 256917360), (2, 128458680), (3, 85639120), (4, 64229340), (5, 51383472), (6, 42819560), (7, 36702480), (8, 32114670), (10, 25691736), (12, 21409780), (14, 18351240), (15, 17127824), (16, 16057335), (20, 12845868), (21, 12234160), (23, 11170320), (24, 10704890), (28, 9175620), (30, 8563912), (35, 7340496), (40, 6422934), (42, 6117080), (46, 5585160), (48, 5352445), (56, 4587810), (60, 4281956), (61, 4211760), (69, 3723440), (70, 3670248), (80, 3211467), (84, 3058540), (92, 2792580), (105, 2446832), (109, 2357040), (112, 2293905), (115, 2234064), (120, 2140978), (122, 2105880), (138, 1861720), (140, 1835124), (161, 1595760), (168, 1529270), (183, 1403920), (184, 1396290), (210, 1223416), (218, 1178520), (230, 1117032), (240, 1070489), (244, 1052940), (276, 930860), (280, 917562), (305, 842352), (322, 797880), (327, 785680), (336, 764635), (345, 744688), (366, 701960), (368, 698145), (420, 611708), (427, 601680), (436, 589260), (460, 558516), (483, 531920), (488, 526470), (545, 471408), (552, 465430), (560, 458781), (610, 421176), (644, 398940), (654, 392840), (690, 372344), (732, 350980), (763, 336720), (805, 319152), (840, 305854), (854, 300840), (872, 294630), (915, 280784), (920, 279258), (966, 265960), (976, 263235), (1090, 235704), (1104, 232715), (1220, 210588), (1281, 200560), (1288, 199470), (1308, 196420), (1380, 186172), (1403, 183120), (1464, 175490), (1526, 168360), (1610, 159576), (1635, 157136), (1680, 152927), (1708, 150420), (1744, 147315), (1830, 140392), (1840, 139629), (1932, 132980), (2135, 120336), (2180, 117852), (2289, 112240), (2415, 106384), (2440, 105294), (2507, 102480), (2562, 100280), (2576, 99735), (2616, 98210), (2760, 93086), (2806, 91560), (2928, 87745), (3052, 84180), (3220, 79788), (3270, 78568), (3416, 75210), (3660, 70196), (3815, 67344), (3864, 66490), (4209, 61040), (4270, 60168), (4360, 58926), (4578, 56120), (4830, 53192), (4880, 52647), (5014, 51240), (5124, 50140), (5232, 49105), (5520, 46543), (5612, 45780), (6104, 42090), (6405, 40112), (6440, 39894), (6540, 39284), (6649, 38640), (6832, 37605), (7015, 36624), (7320, 35098), (7521, 34160), (7630, 33672), (7728, 33245), (8418, 30520), (8540, 30084), (8720, 29463), (9156, 28060), (9660, 26596), (9821, 26160), (10028, 25620), (10248, 25070), (11224, 22890), (11445, 22448), (12208, 21045), (12535, 20496), (12810, 20056), (12880, 19947), (13080, 19642), (13298, 19320), (14030, 18312), (14640, 17549), (15042, 17080), (15260, 16836)]