78702920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12071}}^1$

素因数の和:12245

約数の個数: 32

約数和(自身を含む): 178182720

約数和(自身を除く): 99479800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12071, 24142, 48284, 60355, 96568, 120710, 241420, 482840, 1967573, 3935146, 7870292, 9837865, 15740584, 19675730, 39351460, 78702920]

約数ペア:

[(1, 78702920), (2, 39351460), (4, 19675730), (5, 15740584), (8, 9837865), (10, 7870292), (20, 3935146), (40, 1967573), (163, 482840), (326, 241420), (652, 120710), (815, 96568), (1304, 60355), (1630, 48284), (3260, 24142), (6520, 12071)]