90724180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{156421}}^1$

素因数の和:156459

約数の個数: 24

約数和(自身を含む): 197091720

約数和(自身を除く): 106367540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 156421, 312842, 625684, 782105, 1564210, 3128420, 4536209, 9072418, 18144836, 22681045, 45362090, 90724180]

約数ペア:

[(1, 90724180), (2, 45362090), (4, 22681045), (5, 18144836), (10, 9072418), (20, 4536209), (29, 3128420), (58, 1564210), (116, 782105), (145, 625684), (290, 312842), (580, 156421)]