7145840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6871}}^1$

素因数の和:6897

約数の個数: 40

約数和(自身を含む): 17894688

約数和(自身を除く): 10748848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 6871, 13742, 27484, 34355, 54968, 68710, 89323, 109936, 137420, 178646, 274840, 357292, 446615, 549680, 714584, 893230, 1429168, 1786460, 3572920, 7145840]

約数ペア:

[(1, 7145840), (2, 3572920), (4, 1786460), (5, 1429168), (8, 893230), (10, 714584), (13, 549680), (16, 446615), (20, 357292), (26, 274840), (40, 178646), (52, 137420), (65, 109936), (80, 89323), (104, 68710), (130, 54968), (208, 34355), (260, 27484), (520, 13742), (1040, 6871)]