31394120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{16699}}^1$

素因数の和:16757

約数の個数: 32

約数和(自身を含む): 72144000

約数和(自身を除く): 40749880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 16699, 33398, 66796, 83495, 133592, 166990, 333980, 667960, 784853, 1569706, 3139412, 3924265, 6278824, 7848530, 15697060, 31394120]

約数ペア:

[(1, 31394120), (2, 15697060), (4, 7848530), (5, 6278824), (8, 3924265), (10, 3139412), (20, 1569706), (40, 784853), (47, 667960), (94, 333980), (188, 166990), (235, 133592), (376, 83495), (470, 66796), (940, 33398), (1880, 16699)]