64325680

素因数分解:

$2^4\times 5^1\times {\mathrm{823}}^1\times {\mathrm{977}}^1$

素因数の和:1813

約数の個数: 40

約数和(自身を含む): 149892192

約数和(自身を除く): 85566512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 823, 977, 1646, 1954, 3292, 3908, 4115, 4885, 6584, 7816, 8230, 9770, 13168, 15632, 16460, 19540, 32920, 39080, 65840, 78160, 804071, 1608142, 3216284, 4020355, 6432568, 8040710, 12865136, 16081420, 32162840, 64325680]

約数ペア:

[(1, 64325680), (2, 32162840), (4, 16081420), (5, 12865136), (8, 8040710), (10, 6432568), (16, 4020355), (20, 3216284), (40, 1608142), (80, 804071), (823, 78160), (977, 65840), (1646, 39080), (1954, 32920), (3292, 19540), (3908, 16460), (4115, 15632), (4885, 13168), (6584, 9770), (7816, 8230)]