159797980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{420521}}^1$

素因数の和:420549

約数の個数: 24

約数和(自身を含む): 353238480

約数和(自身を除く): 193440500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 420521, 841042, 1682084, 2102605, 4205210, 7989899, 8410420, 15979798, 31959596, 39949495, 79898990, 159797980]

約数ペア:

[(1, 159797980), (2, 79898990), (4, 39949495), (5, 31959596), (10, 15979798), (19, 8410420), (20, 7989899), (38, 4205210), (76, 2102605), (95, 1682084), (190, 841042), (380, 420521)]