8049385640

素因数分解:

$2^3\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{121007}}^1$

素因数の和:122681

約数の個数: 32

約数和(自身を含む): 18122158080

約数和(自身を除く): 10072772440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1663, 3326, 6652, 8315, 13304, 16630, 33260, 66520, 121007, 242014, 484028, 605035, 968056, 1210070, 2420140, 4840280, 201234641, 402469282, 804938564, 1006173205, 1609877128, 2012346410, 4024692820, 8049385640]

約数ペア:

[(1, 8049385640), (2, 4024692820), (4, 2012346410), (5, 1609877128), (8, 1006173205), (10, 804938564), (20, 402469282), (40, 201234641), (1663, 4840280), (3326, 2420140), (6652, 1210070), (8315, 968056), (13304, 605035), (16630, 484028), (33260, 242014), (66520, 121007)]