1640129410

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1\times {\mathrm{1987}}^1$

素因数の和:2610

約数の個数: 32

約数和(自身を含む): 2975797440

約数和(自身を除く): 1335668030

約数列:

[1, 2, 5, 10, 197, 394, 419, 838, 985, 1970, 1987, 2095, 3974, 4190, 9935, 19870, 82543, 165086, 391439, 412715, 782878, 825430, 832553, 1665106, 1957195, 3914390, 4162765, 8325530, 164012941, 328025882, 820064705, 1640129410]

約数ペア:

[(1, 1640129410), (2, 820064705), (5, 328025882), (10, 164012941), (197, 8325530), (394, 4162765), (419, 3914390), (838, 1957195), (985, 1665106), (1970, 832553), (1987, 825430), (2095, 782878), (3974, 412715), (4190, 391439), (9935, 165086), (19870, 82543)]