31450520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{16729}}^1$

素因数の和:16787

約数の個数: 32

約数和(自身を含む): 72273600

約数和(自身を除く): 40823080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 16729, 33458, 66916, 83645, 133832, 167290, 334580, 669160, 786263, 1572526, 3145052, 3931315, 6290104, 7862630, 15725260, 31450520]

約数ペア:

[(1, 31450520), (2, 15725260), (4, 7862630), (5, 6290104), (8, 3931315), (10, 3145052), (20, 1572526), (40, 786263), (47, 669160), (94, 334580), (188, 167290), (235, 133832), (376, 83645), (470, 66916), (940, 33458), (1880, 16729)]