128318672

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{258707}}^1$

素因数の和:258746

約数の個数: 20

約数和(自身を含む): 256638336

約数和(自身を除く): 128319664

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 258707, 517414, 1034828, 2069656, 4139312, 8019917, 16039834, 32079668, 64159336, 128318672]

約数ペア:

[(1, 128318672), (2, 64159336), (4, 32079668), (8, 16039834), (16, 8019917), (31, 4139312), (62, 2069656), (124, 1034828), (248, 517414), (496, 258707)]