9887980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26021}}^1$

素因数の和:26049

約数の個数: 24

約数和(自身を含む): 21858480

約数和(自身を除く): 11970500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 26021, 52042, 104084, 130105, 260210, 494399, 520420, 988798, 1977596, 2471995, 4943990, 9887980]

約数ペア:

[(1, 9887980), (2, 4943990), (4, 2471995), (5, 1977596), (10, 988798), (19, 520420), (20, 494399), (38, 260210), (76, 130105), (95, 104084), (190, 52042), (380, 26021)]