87890380

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{12241}}^1$

素因数の和:12609

約数の個数: 24

約数和(自身を含む): 185099040

約数和(自身を除く): 97208660

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 12241, 24482, 48964, 61205, 122410, 244820, 4394519, 8789038, 17578076, 21972595, 43945190, 87890380]

約数ペア:

[(1, 87890380), (2, 43945190), (4, 21972595), (5, 17578076), (10, 8789038), (20, 4394519), (359, 244820), (718, 122410), (1436, 61205), (1795, 48964), (3590, 24482), (7180, 12241)]