9980920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5309}}^1$

素因数の和:5367

約数の個数: 32

約数和(自身を含む): 22939200

約数和(自身を除く): 12958280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 5309, 10618, 21236, 26545, 42472, 53090, 106180, 212360, 249523, 499046, 998092, 1247615, 1996184, 2495230, 4990460, 9980920]

約数ペア:

[(1, 9980920), (2, 4990460), (4, 2495230), (5, 1996184), (8, 1247615), (10, 998092), (20, 499046), (40, 249523), (47, 212360), (94, 106180), (188, 53090), (235, 42472), (376, 26545), (470, 21236), (940, 10618), (1880, 5309)]