12415640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3929}}^1$

素因数の和:4019

約数の個数: 32

約数和(自身を含む): 28296000

約数和(自身を除く): 15880360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 3929, 7858, 15716, 19645, 31432, 39290, 78580, 157160, 310391, 620782, 1241564, 1551955, 2483128, 3103910, 6207820, 12415640]

約数ペア:

[(1, 12415640), (2, 6207820), (4, 3103910), (5, 2483128), (8, 1551955), (10, 1241564), (20, 620782), (40, 310391), (79, 157160), (158, 78580), (316, 39290), (395, 31432), (632, 19645), (790, 15716), (1580, 7858), (3160, 3929)]