138788680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{204101}}^1$

素因数の和:204129

約数の個数: 32

約数和(自身を含む): 330645240

約数和(自身を除く): 191856560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 204101, 408202, 816404, 1020505, 1632808, 2041010, 3469717, 4082020, 6939434, 8164040, 13878868, 17348585, 27757736, 34697170, 69394340, 138788680]

約数ペア:

[(1, 138788680), (2, 69394340), (4, 34697170), (5, 27757736), (8, 17348585), (10, 13878868), (17, 8164040), (20, 6939434), (34, 4082020), (40, 3469717), (68, 2041010), (85, 1632808), (136, 1020505), (170, 816404), (340, 408202), (680, 204101)]