12487240

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1187}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 28226880

約数和(自身を除く): 15739640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1187, 1315, 2104, 2374, 2630, 4748, 5260, 5935, 9496, 10520, 11870, 23740, 47480, 312181, 624362, 1248724, 1560905, 2497448, 3121810, 6243620, 12487240]

約数ペア:

[(1, 12487240), (2, 6243620), (4, 3121810), (5, 2497448), (8, 1560905), (10, 1248724), (20, 624362), (40, 312181), (263, 47480), (526, 23740), (1052, 11870), (1187, 10520), (1315, 9496), (2104, 5935), (2374, 5260), (2630, 4748)]