12470440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4391}}^1$

素因数の和:4473

約数の個数: 32

約数和(自身を含む): 28460160

約数和(自身を除く): 15989720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4391, 8782, 17564, 21955, 35128, 43910, 87820, 175640, 311761, 623522, 1247044, 1558805, 2494088, 3117610, 6235220, 12470440]

約数ペア:

[(1, 12470440), (2, 6235220), (4, 3117610), (5, 2494088), (8, 1558805), (10, 1247044), (20, 623522), (40, 311761), (71, 175640), (142, 87820), (284, 43910), (355, 35128), (568, 21955), (710, 17564), (1420, 8782), (2840, 4391)]