64025680

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1901}}^1$

素因数の和:2335

約数の個数: 40

約数和(自身を含む): 149291784

約数和(自身を除く): 85266104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 1901, 2105, 3368, 3802, 4210, 6736, 7604, 8420, 9505, 15208, 16840, 19010, 30416, 33680, 38020, 76040, 152080, 800321, 1600642, 3201284, 4001605, 6402568, 8003210, 12805136, 16006420, 32012840, 64025680]

約数ペア:

[(1, 64025680), (2, 32012840), (4, 16006420), (5, 12805136), (8, 8003210), (10, 6402568), (16, 4001605), (20, 3201284), (40, 1600642), (80, 800321), (421, 152080), (842, 76040), (1684, 38020), (1901, 33680), (2105, 30416), (3368, 19010), (3802, 16840), (4210, 15208), (6736, 9505), (7604, 8420)]