28978020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:642

約数の個数: 96

約数和(自身を含む): 91203840

約数和(自身を除く): 62225820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 103, 108, 135, 180, 206, 270, 309, 412, 515, 521, 540, 618, 927, 1030, 1042, 1236, 1545, 1563, 1854, 2060, 2084, 2605, 2781, 3090, 3126, 3708, 4635, 4689, 5210, 5562, 6180, 6252, 7815, 9270, 9378, 10420, 11124, 13905, 14067, 15630, 18540, 18756, 23445, 27810, 28134, 31260, 46890, 53663, 55620, 56268, 70335, 93780, 107326, 140670, 160989, 214652, 268315, 281340, 321978, 482967, 536630, 643956, 804945, 965934, 1073260, 1448901, 1609890, 1931868, 2414835, 2897802, 3219780, 4829670, 5795604, 7244505, 9659340, 14489010, 28978020]

約数ペア:

[(1, 28978020), (2, 14489010), (3, 9659340), (4, 7244505), (5, 5795604), (6, 4829670), (9, 3219780), (10, 2897802), (12, 2414835), (15, 1931868), (18, 1609890), (20, 1448901), (27, 1073260), (30, 965934), (36, 804945), (45, 643956), (54, 536630), (60, 482967), (90, 321978), (103, 281340), (108, 268315), (135, 214652), (180, 160989), (206, 140670), (270, 107326), (309, 93780), (412, 70335), (515, 56268), (521, 55620), (540, 53663), (618, 46890), (927, 31260), (1030, 28134), (1042, 27810), (1236, 23445), (1545, 18756), (1563, 18540), (1854, 15630), (2060, 14067), (2084, 13905), (2605, 11124), (2781, 10420), (3090, 9378), (3126, 9270), (3708, 7815), (4635, 6252), (4689, 6180), (5210, 5562)]