641170090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{11681}}^1$

素因数の和:12198

約数の個数: 32

約数和(自身を含む): 1261656000

約数和(自身を除く): 620485910

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 499, 998, 2495, 4990, 5489, 10978, 11681, 23362, 27445, 54890, 58405, 116810, 128491, 256982, 642455, 1284910, 5828819, 11657638, 29144095, 58288190, 64117009, 128234018, 320585045, 641170090]

約数ペア:

[(1, 641170090), (2, 320585045), (5, 128234018), (10, 64117009), (11, 58288190), (22, 29144095), (55, 11657638), (110, 5828819), (499, 1284910), (998, 642455), (2495, 256982), (4990, 128491), (5489, 116810), (10978, 58405), (11681, 54890), (23362, 27445)]