201157640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{12541}}^1$

素因数の和:12953

約数の個数: 32

約数和(自身を含む): 453769560

約数和(自身を除く): 252611920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 12541, 16040, 25082, 50164, 62705, 100328, 125410, 250820, 501640, 5028941, 10057882, 20115764, 25144705, 40231528, 50289410, 100578820, 201157640]

約数ペア:

[(1, 201157640), (2, 100578820), (4, 50289410), (5, 40231528), (8, 25144705), (10, 20115764), (20, 10057882), (40, 5028941), (401, 501640), (802, 250820), (1604, 125410), (2005, 100328), (3208, 62705), (4010, 50164), (8020, 25082), (12541, 16040)]