75868020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{809}}^1$

素因数の和:1345

約数の個数: 72

約数和(自身を含む): 230859720

約数和(自身を除く): 154991700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 809, 1042, 1563, 1618, 2084, 2427, 2605, 3126, 3236, 4045, 4689, 4854, 5210, 6252, 7281, 7815, 8090, 9378, 9708, 10420, 12135, 14562, 15630, 16180, 18756, 23445, 24270, 29124, 31260, 36405, 46890, 48540, 72810, 93780, 145620, 421489, 842978, 1264467, 1685956, 2107445, 2528934, 3793401, 4214890, 5057868, 6322335, 7586802, 8429780, 12644670, 15173604, 18967005, 25289340, 37934010, 75868020]

約数ペア:

[(1, 75868020), (2, 37934010), (3, 25289340), (4, 18967005), (5, 15173604), (6, 12644670), (9, 8429780), (10, 7586802), (12, 6322335), (15, 5057868), (18, 4214890), (20, 3793401), (30, 2528934), (36, 2107445), (45, 1685956), (60, 1264467), (90, 842978), (180, 421489), (521, 145620), (809, 93780), (1042, 72810), (1563, 48540), (1618, 46890), (2084, 36405), (2427, 31260), (2605, 29124), (3126, 24270), (3236, 23445), (4045, 18756), (4689, 16180), (4854, 15630), (5210, 14562), (6252, 12135), (7281, 10420), (7815, 9708), (8090, 9378)]