31546780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 69300000

約数和(自身を除く): 37753220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 116, 145, 218, 290, 436, 499, 545, 580, 998, 1090, 1996, 2180, 2495, 3161, 4990, 6322, 9980, 12644, 14471, 15805, 28942, 31610, 54391, 57884, 63220, 72355, 108782, 144710, 217564, 271955, 289420, 543910, 1087820, 1577339, 3154678, 6309356, 7886695, 15773390, 31546780]

約数ペア:

[(1, 31546780), (2, 15773390), (4, 7886695), (5, 6309356), (10, 3154678), (20, 1577339), (29, 1087820), (58, 543910), (109, 289420), (116, 271955), (145, 217564), (218, 144710), (290, 108782), (436, 72355), (499, 63220), (545, 57884), (580, 54391), (998, 31610), (1090, 28942), (1996, 15805), (2180, 14471), (2495, 12644), (3161, 9980), (4990, 6322)]