31479820

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1621}}^1$

素因数の和:2601

約数の個数: 24

約数和(自身を含む): 66216528

約数和(自身を除く): 34736708

約数列:

[1, 2, 4, 5, 10, 20, 971, 1621, 1942, 3242, 3884, 4855, 6484, 8105, 9710, 16210, 19420, 32420, 1573991, 3147982, 6295964, 7869955, 15739910, 31479820]

約数ペア:

[(1, 31479820), (2, 15739910), (4, 7869955), (5, 6295964), (10, 3147982), (20, 1573991), (971, 32420), (1621, 19420), (1942, 16210), (3242, 9710), (3884, 8105), (4855, 6484)]