20145196816

素因数分解:

$2^4\times {\mathrm{3119}}^1\times {\mathrm{403679}}^1$

素因数の和:406806

約数の個数: 20

約数和(自身を含む): 39043929600

約数和(自身を除く): 18898732784

約数列:

[1, 2, 4, 8, 16, 3119, 6238, 12476, 24952, 49904, 403679, 807358, 1614716, 3229432, 6458864, 1259074801, 2518149602, 5036299204, 10072598408, 20145196816]

約数ペア:

[(1, 20145196816), (2, 10072598408), (4, 5036299204), (8, 2518149602), (16, 1259074801), (3119, 6458864), (6238, 3229432), (12476, 1614716), (24952, 807358), (49904, 403679)]