2639725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 3705120

約数和(自身を除く): 1065395

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 331, 725, 1595, 1655, 3641, 7975, 8275, 9599, 18205, 47995, 91025, 105589, 239975, 527945, 2639725]

約数ペア:

[(1, 2639725), (5, 527945), (11, 239975), (25, 105589), (29, 91025), (55, 47995), (145, 18205), (275, 9599), (319, 8275), (331, 7975), (725, 3641), (1595, 1655)]