7918783990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{691}}^1\times {\mathrm{6781}}^1$

素因数の和:7505

約数の個数: 48

約数和(自身を含む): 15459216336

約数和(自身を除く): 7540432346

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 691, 845, 1382, 1690, 3455, 6781, 6910, 8983, 13562, 17966, 33905, 44915, 67810, 88153, 89830, 116779, 176306, 233558, 440765, 583895, 881530, 1145989, 1167790, 2291978, 4685671, 5729945, 9371342, 11459890, 23428355, 46856710, 60913723, 121827446, 304568615, 609137230, 791878399, 1583756798, 3959391995, 7918783990]

約数ペア:

[(1, 7918783990), (2, 3959391995), (5, 1583756798), (10, 791878399), (13, 609137230), (26, 304568615), (65, 121827446), (130, 60913723), (169, 46856710), (338, 23428355), (691, 11459890), (845, 9371342), (1382, 5729945), (1690, 4685671), (3455, 2291978), (6781, 1167790), (6910, 1145989), (8983, 881530), (13562, 583895), (17966, 440765), (33905, 233558), (44915, 176306), (67810, 116779), (88153, 89830)]