31427890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{457}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 63825048

約数和(自身を除く): 32397158

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 457, 529, 598, 914, 1058, 1495, 2285, 2645, 2990, 4570, 5290, 5941, 6877, 10511, 11882, 13754, 21022, 29705, 34385, 52555, 59410, 68770, 105110, 136643, 241753, 273286, 483506, 683215, 1208765, 1366430, 2417530, 3142789, 6285578, 15713945, 31427890]

約数ペア:

[(1, 31427890), (2, 15713945), (5, 6285578), (10, 3142789), (13, 2417530), (23, 1366430), (26, 1208765), (46, 683215), (65, 483506), (115, 273286), (130, 241753), (230, 136643), (299, 105110), (457, 68770), (529, 59410), (598, 52555), (914, 34385), (1058, 29705), (1495, 21022), (2285, 13754), (2645, 11882), (2990, 10511), (4570, 6877), (5290, 5941)]