31497520

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8377}}^1$

素因数の和:8437

約数の個数: 40

約数和(自身を含む): 74798784

約数和(自身を除く): 43301264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 8377, 16754, 33508, 41885, 67016, 83770, 134032, 167540, 335080, 393719, 670160, 787438, 1574876, 1968595, 3149752, 3937190, 6299504, 7874380, 15748760, 31497520]

約数ペア:

[(1, 31497520), (2, 15748760), (4, 7874380), (5, 6299504), (8, 3937190), (10, 3149752), (16, 1968595), (20, 1574876), (40, 787438), (47, 670160), (80, 393719), (94, 335080), (188, 167540), (235, 134032), (376, 83770), (470, 67016), (752, 41885), (940, 33508), (1880, 16754), (3760, 8377)]