279478160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{268729}}^1$

素因数の和:268755

約数の個数: 40

約数和(自身を含む): 699772920

約数和(自身を除く): 420294760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 268729, 537458, 1074916, 1343645, 2149832, 2687290, 3493477, 4299664, 5374580, 6986954, 10749160, 13973908, 17467385, 21498320, 27947816, 34934770, 55895632, 69869540, 139739080, 279478160]

約数ペア:

[(1, 279478160), (2, 139739080), (4, 69869540), (5, 55895632), (8, 34934770), (10, 27947816), (13, 21498320), (16, 17467385), (20, 13973908), (26, 10749160), (40, 6986954), (52, 5374580), (65, 4299664), (80, 3493477), (104, 2687290), (130, 2149832), (208, 1343645), (260, 1074916), (520, 537458), (1040, 268729)]