15644240

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{691}}^1$

素因数の和:987

約数の個数: 40

約数和(自身を含む): 36554208

約数和(自身を除く): 20909968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 691, 1132, 1382, 1415, 2264, 2764, 2830, 3455, 4528, 5528, 5660, 6910, 11056, 11320, 13820, 22640, 27640, 55280, 195553, 391106, 782212, 977765, 1564424, 1955530, 3128848, 3911060, 7822120, 15644240]

約数ペア:

[(1, 15644240), (2, 7822120), (4, 3911060), (5, 3128848), (8, 1955530), (10, 1564424), (16, 977765), (20, 782212), (40, 391106), (80, 195553), (283, 55280), (566, 27640), (691, 22640), (1132, 13820), (1382, 11320), (1415, 11056), (2264, 6910), (2764, 5660), (2830, 5528), (3455, 4528)]