1680490180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{334759}}^1$

素因数の和:335019

約数の個数: 24

約数和(自身を含む): 3543099840

約数和(自身を除く): 1862609660

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 334759, 669518, 1339036, 1673795, 3347590, 6695180, 84024509, 168049018, 336098036, 420122545, 840245090, 1680490180]

約数ペア:

[(1, 1680490180), (2, 840245090), (4, 420122545), (5, 336098036), (10, 168049018), (20, 84024509), (251, 6695180), (502, 3347590), (1004, 1673795), (1255, 1339036), (2510, 669518), (5020, 334759)]