65015120

素因数分解:

$2^4\times 5^1\times {\mathrm{812689}}^1$

素因数の和:812702

約数の個数: 20

約数和(自身を含む): 151160340

約数和(自身を除く): 86145220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 812689, 1625378, 3250756, 4063445, 6501512, 8126890, 13003024, 16253780, 32507560, 65015120]

約数ペア:

[(1, 65015120), (2, 32507560), (4, 16253780), (5, 13003024), (8, 8126890), (10, 6501512), (16, 4063445), (20, 3250756), (40, 1625378), (80, 812689)]