12380720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1279}}^1$

素因数の和:1314

約数の個数: 60

約数和(自身を含む): 31664640

約数和(自身を除く): 19283920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1279, 1936, 2420, 2558, 4840, 5116, 6395, 9680, 10232, 12790, 14069, 20464, 25580, 28138, 51160, 56276, 70345, 102320, 112552, 140690, 154759, 225104, 281380, 309518, 562760, 619036, 773795, 1125520, 1238072, 1547590, 2476144, 3095180, 6190360, 12380720]

約数ペア:

[(1, 12380720), (2, 6190360), (4, 3095180), (5, 2476144), (8, 1547590), (10, 1238072), (11, 1125520), (16, 773795), (20, 619036), (22, 562760), (40, 309518), (44, 281380), (55, 225104), (80, 154759), (88, 140690), (110, 112552), (121, 102320), (176, 70345), (220, 56276), (242, 51160), (440, 28138), (484, 25580), (605, 20464), (880, 14069), (968, 12790), (1210, 10232), (1279, 9680), (1936, 6395), (2420, 5116), (2558, 4840)]