78960840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 256

約数和(自身を含む): 291409920

約数和(自身を除く): 212449080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 61, 67, 69, 70, 84, 92, 105, 115, 120, 122, 134, 138, 140, 161, 168, 183, 184, 201, 210, 230, 244, 268, 276, 280, 305, 322, 335, 345, 366, 402, 420, 427, 460, 469, 483, 488, 536, 552, 610, 644, 670, 690, 732, 804, 805, 840, 854, 915, 920, 938, 966, 1005, 1220, 1281, 1288, 1340, 1380, 1403, 1407, 1464, 1541, 1608, 1610, 1708, 1830, 1876, 1932, 2010, 2135, 2345, 2415, 2440, 2562, 2680, 2760, 2806, 2814, 3082, 3220, 3416, 3660, 3752, 3864, 4020, 4087, 4209, 4270, 4623, 4690, 4830, 5124, 5612, 5628, 6164, 6405, 6440, 7015, 7035, 7320, 7705, 8040, 8174, 8418, 8540, 9246, 9380, 9660, 9821, 10248, 10787, 11224, 11256, 12261, 12328, 12810, 14030, 14070, 15410, 16348, 16836, 17080, 18492, 18760, 19320, 19642, 20435, 21045, 21574, 23115, 24522, 25620, 28060, 28140, 28609, 29463, 30820, 32361, 32696, 33672, 36984, 39284, 40870, 42090, 43148, 46230, 49044, 49105, 51240, 53935, 56120, 56280, 57218, 58926, 61305, 61640, 64722, 78568, 81740, 84180, 85827, 86296, 92460, 94001, 98088, 98210, 107870, 114436, 117852, 122610, 129444, 143045, 147315, 161805, 163480, 168360, 171654, 184920, 188002, 196420, 215740, 228872, 235704, 245220, 258888, 282003, 286090, 294630, 323610, 343308, 376004, 392840, 429135, 431480, 470005, 490440, 564006, 572180, 589260, 647220, 658007, 686616, 752008, 858270, 940010, 1128012, 1144360, 1178520, 1294440, 1316014, 1410015, 1716540, 1880020, 1974021, 2256024, 2632028, 2820030, 3290035, 3433080, 3760040, 3948042, 5264056, 5640060, 6580070, 7896084, 9870105, 11280120, 13160140, 15792168, 19740210, 26320280, 39480420, 78960840]

約数ペア:

[(1, 78960840), (2, 39480420), (3, 26320280), (4, 19740210), (5, 15792168), (6, 13160140), (7, 11280120), (8, 9870105), (10, 7896084), (12, 6580070), (14, 5640060), (15, 5264056), (20, 3948042), (21, 3760040), (23, 3433080), (24, 3290035), (28, 2820030), (30, 2632028), (35, 2256024), (40, 1974021), (42, 1880020), (46, 1716540), (56, 1410015), (60, 1316014), (61, 1294440), (67, 1178520), (69, 1144360), (70, 1128012), (84, 940010), (92, 858270), (105, 752008), (115, 686616), (120, 658007), (122, 647220), (134, 589260), (138, 572180), (140, 564006), (161, 490440), (168, 470005), (183, 431480), (184, 429135), (201, 392840), (210, 376004), (230, 343308), (244, 323610), (268, 294630), (276, 286090), (280, 282003), (305, 258888), (322, 245220), (335, 235704), (345, 228872), (366, 215740), (402, 196420), (420, 188002), (427, 184920), (460, 171654), (469, 168360), (483, 163480), (488, 161805), (536, 147315), (552, 143045), (610, 129444), (644, 122610), (670, 117852), (690, 114436), (732, 107870), (804, 98210), (805, 98088), (840, 94001), (854, 92460), (915, 86296), (920, 85827), (938, 84180), (966, 81740), (1005, 78568), (1220, 64722), (1281, 61640), (1288, 61305), (1340, 58926), (1380, 57218), (1403, 56280), (1407, 56120), (1464, 53935), (1541, 51240), (1608, 49105), (1610, 49044), (1708, 46230), (1830, 43148), (1876, 42090), (1932, 40870), (2010, 39284), (2135, 36984), (2345, 33672), (2415, 32696), (2440, 32361), (2562, 30820), (2680, 29463), (2760, 28609), (2806, 28140), (2814, 28060), (3082, 25620), (3220, 24522), (3416, 23115), (3660, 21574), (3752, 21045), (3864, 20435), (4020, 19642), (4087, 19320), (4209, 18760), (4270, 18492), (4623, 17080), (4690, 16836), (4830, 16348), (5124, 15410), (5612, 14070), (5628, 14030), (6164, 12810), (6405, 12328), (6440, 12261), (7015, 11256), (7035, 11224), (7320, 10787), (7705, 10248), (8040, 9821), (8174, 9660), (8418, 9380), (8540, 9246)]