81633640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{185531}}^1$

素因数の和:185553

約数の個数: 32

約数和(自身を含む): 200374560

約数和(自身を除く): 118740920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 185531, 371062, 742124, 927655, 1484248, 1855310, 2040841, 3710620, 4081682, 7421240, 8163364, 10204205, 16326728, 20408410, 40816820, 81633640]

約数ペア:

[(1, 81633640), (2, 40816820), (4, 20408410), (5, 16326728), (8, 10204205), (10, 8163364), (11, 7421240), (20, 4081682), (22, 3710620), (40, 2040841), (44, 1855310), (55, 1484248), (88, 927655), (110, 742124), (220, 371062), (440, 185531)]