15885560

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{971}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 35866800

約数和(自身を除く): 19981240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 971, 1636, 1942, 2045, 3272, 3884, 4090, 4855, 7768, 8180, 9710, 16360, 19420, 38840, 397139, 794278, 1588556, 1985695, 3177112, 3971390, 7942780, 15885560]

約数ペア:

[(1, 15885560), (2, 7942780), (4, 3971390), (5, 3177112), (8, 1985695), (10, 1588556), (20, 794278), (40, 397139), (409, 38840), (818, 19420), (971, 16360), (1636, 9710), (1942, 8180), (2045, 7768), (3272, 4855), (3884, 4090)]