81667360

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4517}}^1$

素因数の和:4645

約数の個数: 48

約数和(自身を含む): 194689656

約数和(自身を除く): 113022296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1808, 2260, 3616, 4517, 4520, 9034, 9040, 18068, 18080, 22585, 36136, 45170, 72272, 90340, 144544, 180680, 361360, 510421, 722720, 1020842, 2041684, 2552105, 4083368, 5104210, 8166736, 10208420, 16333472, 20416840, 40833680, 81667360]

約数ペア:

[(1, 81667360), (2, 40833680), (4, 20416840), (5, 16333472), (8, 10208420), (10, 8166736), (16, 5104210), (20, 4083368), (32, 2552105), (40, 2041684), (80, 1020842), (113, 722720), (160, 510421), (226, 361360), (452, 180680), (565, 144544), (904, 90340), (1130, 72272), (1808, 45170), (2260, 36136), (3616, 22585), (4517, 18080), (4520, 18068), (9034, 9040)]