90389620

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{23417}}^1$

素因数の和:23619

約数の個数: 24

約数和(自身を含む): 190809864

約数和(自身を除く): 100420244

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 23417, 46834, 93668, 117085, 234170, 468340, 4519481, 9038962, 18077924, 22597405, 45194810, 90389620]

約数ペア:

[(1, 90389620), (2, 45194810), (4, 22597405), (5, 18077924), (10, 9038962), (20, 4519481), (193, 468340), (386, 234170), (772, 117085), (965, 93668), (1930, 46834), (3860, 23417)]