389631940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1\times {\mathrm{1117}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 831684672

約数和(自身を除く): 442052732

約数列:

[1, 2, 4, 5, 10, 20, 107, 163, 214, 326, 428, 535, 652, 815, 1070, 1117, 1630, 2140, 2234, 3260, 4468, 5585, 11170, 17441, 22340, 34882, 69764, 87205, 119519, 174410, 182071, 239038, 348820, 364142, 478076, 597595, 728284, 910355, 1195190, 1820710, 2390380, 3641420, 19481597, 38963194, 77926388, 97407985, 194815970, 389631940]

約数ペア:

[(1, 389631940), (2, 194815970), (4, 97407985), (5, 77926388), (10, 38963194), (20, 19481597), (107, 3641420), (163, 2390380), (214, 1820710), (326, 1195190), (428, 910355), (535, 728284), (652, 597595), (815, 478076), (1070, 364142), (1117, 348820), (1630, 239038), (2140, 182071), (2234, 174410), (3260, 119519), (4468, 87205), (5585, 69764), (11170, 34882), (17441, 22340)]