20049080

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7481}}^1$

素因数の和:7559

約数の個数: 32

約数和(自身を含む): 45789840

約数和(自身を除く): 25740760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7481, 14962, 29924, 37405, 59848, 74810, 149620, 299240, 501227, 1002454, 2004908, 2506135, 4009816, 5012270, 10024540, 20049080]

約数ペア:

[(1, 20049080), (2, 10024540), (4, 5012270), (5, 4009816), (8, 2506135), (10, 2004908), (20, 1002454), (40, 501227), (67, 299240), (134, 149620), (268, 74810), (335, 59848), (536, 37405), (670, 29924), (1340, 14962), (2680, 7481)]