1688210

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:829

約数の個数: 16

約数和(自身を含む): 3053592

約数和(自身を除く): 1365382

約数列:

[1, 2, 5, 10, 401, 421, 802, 842, 2005, 2105, 4010, 4210, 168821, 337642, 844105, 1688210]

約数ペア:

[(1, 1688210), (2, 844105), (5, 337642), (10, 168821), (401, 4210), (421, 4010), (802, 2105), (842, 2005)]