18164120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2687}}^1$

素因数の和:2724

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 26107240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2687, 3380, 5374, 6760, 10748, 13435, 21496, 26870, 34931, 53740, 69862, 107480, 139724, 174655, 279448, 349310, 454103, 698620, 908206, 1397240, 1816412, 2270515, 3632824, 4541030, 9082060, 18164120]

約数ペア:

[(1, 18164120), (2, 9082060), (4, 4541030), (5, 3632824), (8, 2270515), (10, 1816412), (13, 1397240), (20, 908206), (26, 698620), (40, 454103), (52, 349310), (65, 279448), (104, 174655), (130, 139724), (169, 107480), (260, 69862), (338, 53740), (520, 34931), (676, 26870), (845, 21496), (1352, 13435), (1690, 10748), (2687, 6760), (3380, 5374)]