18980491780

素因数分解:

$2^2\times 5^1\times {\mathrm{5527}}^1\times {\mathrm{171707}}^1$

素因数の和:177243

約数の個数: 24

約数和(自身を含む): 39866476608

約数和(自身を除く): 20885984828

約数列:

[1, 2, 4, 5, 10, 20, 5527, 11054, 22108, 27635, 55270, 110540, 171707, 343414, 686828, 858535, 1717070, 3434140, 949024589, 1898049178, 3796098356, 4745122945, 9490245890, 18980491780]

約数ペア:

[(1, 18980491780), (2, 9490245890), (4, 4745122945), (5, 3796098356), (10, 1898049178), (20, 949024589), (5527, 3434140), (11054, 1717070), (22108, 858535), (27635, 686828), (55270, 343414), (110540, 171707)]