28643160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 256

約数和(自身を含む): 109992960

約数和(自身を除く): 81349800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 43, 52, 56, 60, 61, 65, 70, 78, 84, 86, 91, 104, 105, 120, 122, 129, 130, 140, 156, 168, 172, 182, 183, 195, 210, 215, 244, 258, 260, 273, 280, 301, 305, 312, 344, 364, 366, 390, 420, 427, 430, 455, 488, 516, 520, 546, 559, 602, 610, 645, 728, 732, 780, 793, 840, 854, 860, 903, 910, 915, 1032, 1092, 1118, 1204, 1220, 1281, 1290, 1365, 1464, 1505, 1560, 1586, 1677, 1708, 1720, 1806, 1820, 1830, 2135, 2184, 2236, 2379, 2408, 2440, 2562, 2580, 2623, 2730, 2795, 3010, 3172, 3354, 3416, 3612, 3640, 3660, 3913, 3965, 4270, 4472, 4515, 4758, 5124, 5160, 5246, 5460, 5551, 5590, 6020, 6344, 6405, 6708, 7224, 7320, 7826, 7869, 7930, 8385, 8540, 9030, 9516, 10248, 10492, 10920, 11102, 11180, 11739, 11895, 12040, 12810, 13115, 13416, 15652, 15738, 15860, 16653, 16770, 17080, 18060, 18361, 19032, 19565, 20984, 22204, 22360, 23478, 23790, 25620, 26230, 27755, 31304, 31476, 31720, 33306, 33540, 34099, 36120, 36722, 39130, 39345, 44408, 46956, 47580, 51240, 52460, 55083, 55510, 58695, 62952, 66612, 67080, 68198, 73444, 78260, 78690, 83265, 91805, 93912, 95160, 102297, 104920, 110166, 111020, 117390, 133224, 136396, 146888, 156520, 157380, 166530, 170495, 183610, 204594, 220332, 222040, 234780, 238693, 272792, 275415, 314760, 333060, 340990, 367220, 409188, 440664, 469560, 477386, 511485, 550830, 666120, 681980, 716079, 734440, 818376, 954772, 1022970, 1101660, 1193465, 1363960, 1432158, 1909544, 2045940, 2203320, 2386930, 2864316, 3580395, 4091880, 4773860, 5728632, 7160790, 9547720, 14321580, 28643160]

約数ペア:

[(1, 28643160), (2, 14321580), (3, 9547720), (4, 7160790), (5, 5728632), (6, 4773860), (7, 4091880), (8, 3580395), (10, 2864316), (12, 2386930), (13, 2203320), (14, 2045940), (15, 1909544), (20, 1432158), (21, 1363960), (24, 1193465), (26, 1101660), (28, 1022970), (30, 954772), (35, 818376), (39, 734440), (40, 716079), (42, 681980), (43, 666120), (52, 550830), (56, 511485), (60, 477386), (61, 469560), (65, 440664), (70, 409188), (78, 367220), (84, 340990), (86, 333060), (91, 314760), (104, 275415), (105, 272792), (120, 238693), (122, 234780), (129, 222040), (130, 220332), (140, 204594), (156, 183610), (168, 170495), (172, 166530), (182, 157380), (183, 156520), (195, 146888), (210, 136396), (215, 133224), (244, 117390), (258, 111020), (260, 110166), (273, 104920), (280, 102297), (301, 95160), (305, 93912), (312, 91805), (344, 83265), (364, 78690), (366, 78260), (390, 73444), (420, 68198), (427, 67080), (430, 66612), (455, 62952), (488, 58695), (516, 55510), (520, 55083), (546, 52460), (559, 51240), (602, 47580), (610, 46956), (645, 44408), (728, 39345), (732, 39130), (780, 36722), (793, 36120), (840, 34099), (854, 33540), (860, 33306), (903, 31720), (910, 31476), (915, 31304), (1032, 27755), (1092, 26230), (1118, 25620), (1204, 23790), (1220, 23478), (1281, 22360), (1290, 22204), (1365, 20984), (1464, 19565), (1505, 19032), (1560, 18361), (1586, 18060), (1677, 17080), (1708, 16770), (1720, 16653), (1806, 15860), (1820, 15738), (1830, 15652), (2135, 13416), (2184, 13115), (2236, 12810), (2379, 12040), (2408, 11895), (2440, 11739), (2562, 11180), (2580, 11102), (2623, 10920), (2730, 10492), (2795, 10248), (3010, 9516), (3172, 9030), (3354, 8540), (3416, 8385), (3612, 7930), (3640, 7869), (3660, 7826), (3913, 7320), (3965, 7224), (4270, 6708), (4472, 6405), (4515, 6344), (4758, 6020), (5124, 5590), (5160, 5551), (5246, 5460)]