20487240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56909}}^1$

素因数の和:56926

約数の個数: 48

約数和(自身を含む): 66584700

約数和(自身を除く): 46097460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56909, 113818, 170727, 227636, 284545, 341454, 455272, 512181, 569090, 682908, 853635, 1024362, 1138180, 1365816, 1707270, 2048724, 2276360, 2560905, 3414540, 4097448, 5121810, 6829080, 10243620, 20487240]

約数ペア:

[(1, 20487240), (2, 10243620), (3, 6829080), (4, 5121810), (5, 4097448), (6, 3414540), (8, 2560905), (9, 2276360), (10, 2048724), (12, 1707270), (15, 1365816), (18, 1138180), (20, 1024362), (24, 853635), (30, 682908), (36, 569090), (40, 512181), (45, 455272), (60, 341454), (72, 284545), (90, 227636), (120, 170727), (180, 113818), (360, 56909)]