2155395940

素因数分解:

$2^2\times 5^1\times {\mathrm{2543}}^1\times {\mathrm{42379}}^1$

素因数の和:44931

約数の個数: 24

約数和(自身を含む): 4528218240

約数和(自身を除く): 2372822300

約数列:

[1, 2, 4, 5, 10, 20, 2543, 5086, 10172, 12715, 25430, 42379, 50860, 84758, 169516, 211895, 423790, 847580, 107769797, 215539594, 431079188, 538848985, 1077697970, 2155395940]

約数ペア:

[(1, 2155395940), (2, 1077697970), (4, 538848985), (5, 431079188), (10, 215539594), (20, 107769797), (2543, 847580), (5086, 423790), (10172, 211895), (12715, 169516), (25430, 84758), (42379, 50860)]