2019012820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{539843}}^1$

素因数の和:539880

約数の個数: 48

約数和(自身を含む): 4897464768

約数和(自身を除く): 2878451948

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 539843, 1079686, 2159372, 2699215, 5398430, 5938273, 9177331, 10796860, 11876546, 18354662, 23753092, 29691365, 36709324, 45886655, 59382730, 91773310, 100950641, 118765460, 183546620, 201901282, 403802564, 504753205, 1009506410, 2019012820]

約数ペア:

[(1, 2019012820), (2, 1009506410), (4, 504753205), (5, 403802564), (10, 201901282), (11, 183546620), (17, 118765460), (20, 100950641), (22, 91773310), (34, 59382730), (44, 45886655), (55, 36709324), (68, 29691365), (85, 23753092), (110, 18354662), (170, 11876546), (187, 10796860), (220, 9177331), (340, 5938273), (374, 5398430), (748, 2699215), (935, 2159372), (1870, 1079686), (3740, 539843)]