291225380

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{80449}}^1$

素因数の和:80639

約数の個数: 24

約数和(自身を含む): 614959800

約数和(自身を除く): 323734420

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 80449, 160898, 321796, 402245, 804490, 1608980, 14561269, 29122538, 58245076, 72806345, 145612690, 291225380]

約数ペア:

[(1, 291225380), (2, 145612690), (4, 72806345), (5, 58245076), (10, 29122538), (20, 14561269), (181, 1608980), (362, 804490), (724, 402245), (905, 321796), (1810, 160898), (3620, 80449)]