388974010

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{97001}}^1$

素因数の和:97409

約数の個数: 16

約数和(自身を含む): 701906472

約数和(自身を除く): 312932462

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 97001, 194002, 485005, 970010, 38897401, 77794802, 194487005, 388974010]

約数ペア:

[(1, 388974010), (2, 194487005), (5, 77794802), (10, 38897401), (401, 970010), (802, 485005), (2005, 194002), (4010, 97001)]