8728420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 19278000

約数和(自身を除く): 10549580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 101, 116, 145, 149, 202, 290, 298, 404, 505, 580, 596, 745, 1010, 1490, 2020, 2929, 2980, 4321, 5858, 8642, 11716, 14645, 15049, 17284, 21605, 29290, 30098, 43210, 58580, 60196, 75245, 86420, 150490, 300980, 436421, 872842, 1745684, 2182105, 4364210, 8728420]

約数ペア:

[(1, 8728420), (2, 4364210), (4, 2182105), (5, 1745684), (10, 872842), (20, 436421), (29, 300980), (58, 150490), (101, 86420), (116, 75245), (145, 60196), (149, 58580), (202, 43210), (290, 30098), (298, 29290), (404, 21605), (505, 17284), (580, 15049), (596, 14645), (745, 11716), (1010, 8642), (1490, 5858), (2020, 4321), (2929, 2980)]