27978940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7481}}^1$

素因数の和:7518

約数の個数: 48

約数和(自身を含む): 67876704

約数和(自身を除く): 39897764

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, 7481, 14962, 29924, 37405, 74810, 82291, 127177, 149620, 164582, 254354, 329164, 411455, 508708, 635885, 822910, 1271770, 1398947, 1645820, 2543540, 2797894, 5595788, 6994735, 13989470, 27978940]

約数ペア:

[(1, 27978940), (2, 13989470), (4, 6994735), (5, 5595788), (10, 2797894), (11, 2543540), (17, 1645820), (20, 1398947), (22, 1271770), (34, 822910), (44, 635885), (55, 508708), (68, 411455), (85, 329164), (110, 254354), (170, 164582), (187, 149620), (220, 127177), (340, 82291), (374, 74810), (748, 37405), (935, 29924), (1870, 14962), (3740, 7481)]