156938507380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{71990141}}^1$

素因数の和:71990259

約数の個数: 24

約数和(自身を含む): 332594456040

約数和(自身を除く): 175655948660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 71990141, 143980282, 287960564, 359950705, 719901410, 1439802820, 7846925369, 15693850738, 31387701476, 39234626845, 78469253690, 156938507380]

約数ペア:

[(1, 156938507380), (2, 78469253690), (4, 39234626845), (5, 31387701476), (10, 15693850738), (20, 7846925369), (109, 1439802820), (218, 719901410), (436, 359950705), (545, 287960564), (1090, 143980282), (2180, 71990141)]