18687110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4637}}^1$

素因数の和:4688

約数の個数: 32

約数和(自身を含む): 37400832

約数和(自身を除く): 18713722

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4637, 9274, 23185, 46370, 60281, 120562, 143747, 287494, 301405, 602810, 718735, 1437470, 1868711, 3737422, 9343555, 18687110]

約数ペア:

[(1, 18687110), (2, 9343555), (5, 3737422), (10, 1868711), (13, 1437470), (26, 718735), (31, 602810), (62, 301405), (65, 287494), (130, 143747), (155, 120562), (310, 60281), (403, 46370), (806, 23185), (2015, 9274), (4030, 4637)]