20526075

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 18042885

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 225, 235, 423, 647, 675, 705, 1175, 1269, 1941, 2115, 3235, 3525, 5823, 6345, 9705, 10575, 16175, 17469, 29115, 30409, 31725, 48525, 87345, 91227, 145575, 152045, 273681, 436725, 456135, 760225, 821043, 1368405, 2280675, 4105215, 6842025, 20526075]

約数ペア:

[(1, 20526075), (3, 6842025), (5, 4105215), (9, 2280675), (15, 1368405), (25, 821043), (27, 760225), (45, 456135), (47, 436725), (75, 273681), (135, 152045), (141, 145575), (225, 91227), (235, 87345), (423, 48525), (647, 31725), (675, 30409), (705, 29115), (1175, 17469), (1269, 16175), (1941, 10575), (2115, 9705), (3235, 6345), (3525, 5823)]