18749790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1151}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 30311586

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 543, 905, 1086, 1151, 1629, 1810, 2302, 2715, 3258, 3453, 5430, 5755, 6906, 8145, 10359, 11510, 16290, 17265, 20718, 34530, 51795, 103590, 208331, 416662, 624993, 1041655, 1249986, 1874979, 2083310, 3124965, 3749958, 6249930, 9374895, 18749790]

約数ペア:

[(1, 18749790), (2, 9374895), (3, 6249930), (5, 3749958), (6, 3124965), (9, 2083310), (10, 1874979), (15, 1249986), (18, 1041655), (30, 624993), (45, 416662), (90, 208331), (181, 103590), (362, 51795), (543, 34530), (905, 20718), (1086, 17265), (1151, 16290), (1629, 11510), (1810, 10359), (2302, 8145), (2715, 6906), (3258, 5755), (3453, 5430)]