90324980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{32491}}^1$

素因数の和:32639

約数の個数: 24

約数和(自身を含む): 191052960

約数和(自身を除く): 100727980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 32491, 64982, 129964, 162455, 324910, 649820, 4516249, 9032498, 18064996, 22581245, 45162490, 90324980]

約数ペア:

[(1, 90324980), (2, 45162490), (4, 22581245), (5, 18064996), (10, 9032498), (20, 4516249), (139, 649820), (278, 324910), (556, 162455), (695, 129964), (1390, 64982), (2780, 32491)]