78380320

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 207385920

約数和(自身を除く): 129005600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 59, 76, 80, 92, 95, 115, 118, 152, 160, 184, 190, 230, 236, 295, 304, 361, 368, 380, 437, 460, 472, 590, 608, 722, 736, 760, 874, 920, 944, 1121, 1180, 1357, 1444, 1520, 1748, 1805, 1840, 1888, 2185, 2242, 2360, 2714, 2888, 3040, 3496, 3610, 3680, 4370, 4484, 4720, 5428, 5605, 5776, 6785, 6992, 7220, 8303, 8740, 8968, 9440, 10856, 11210, 11552, 13570, 13984, 14440, 16606, 17480, 17936, 21299, 21712, 22420, 25783, 27140, 28880, 33212, 34960, 35872, 41515, 42598, 43424, 44840, 51566, 54280, 57760, 66424, 69920, 83030, 85196, 89680, 103132, 106495, 108560, 128915, 132848, 166060, 170392, 179360, 206264, 212990, 217120, 257830, 265696, 332120, 340784, 412528, 425980, 489877, 515660, 664240, 681568, 825056, 851960, 979754, 1031320, 1328480, 1703920, 1959508, 2062640, 2449385, 3407840, 3919016, 4125280, 4898770, 7838032, 9797540, 15676064, 19595080, 39190160, 78380320]

約数ペア:

[(1, 78380320), (2, 39190160), (4, 19595080), (5, 15676064), (8, 9797540), (10, 7838032), (16, 4898770), (19, 4125280), (20, 3919016), (23, 3407840), (32, 2449385), (38, 2062640), (40, 1959508), (46, 1703920), (59, 1328480), (76, 1031320), (80, 979754), (92, 851960), (95, 825056), (115, 681568), (118, 664240), (152, 515660), (160, 489877), (184, 425980), (190, 412528), (230, 340784), (236, 332120), (295, 265696), (304, 257830), (361, 217120), (368, 212990), (380, 206264), (437, 179360), (460, 170392), (472, 166060), (590, 132848), (608, 128915), (722, 108560), (736, 106495), (760, 103132), (874, 89680), (920, 85196), (944, 83030), (1121, 69920), (1180, 66424), (1357, 57760), (1444, 54280), (1520, 51566), (1748, 44840), (1805, 43424), (1840, 42598), (1888, 41515), (2185, 35872), (2242, 34960), (2360, 33212), (2714, 28880), (2888, 27140), (3040, 25783), (3496, 22420), (3610, 21712), (3680, 21299), (4370, 17936), (4484, 17480), (4720, 16606), (5428, 14440), (5605, 13984), (5776, 13570), (6785, 11552), (6992, 11210), (7220, 10856), (8303, 9440), (8740, 8968)]