31379080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{16691}}^1$

素因数の和:16749

約数の個数: 32

約数和(自身を含む): 72109440

約数和(自身を除く): 40730360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 16691, 33382, 66764, 83455, 133528, 166910, 333820, 667640, 784477, 1568954, 3137908, 3922385, 6275816, 7844770, 15689540, 31379080]

約数ペア:

[(1, 31379080), (2, 15689540), (4, 7844770), (5, 6275816), (8, 3922385), (10, 3137908), (20, 1568954), (40, 784477), (47, 667640), (94, 333820), (188, 166910), (235, 133528), (376, 83455), (470, 66764), (940, 33382), (1880, 16691)]