87139880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{46351}}^1$

素因数の和:46409

約数の個数: 32

約数和(自身を含む): 200240640

約数和(自身を除く): 113100760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 46351, 92702, 185404, 231755, 370808, 463510, 927020, 1854040, 2178497, 4356994, 8713988, 10892485, 17427976, 21784970, 43569940, 87139880]

約数ペア:

[(1, 87139880), (2, 43569940), (4, 21784970), (5, 17427976), (8, 10892485), (10, 8713988), (20, 4356994), (40, 2178497), (47, 1854040), (94, 927020), (188, 463510), (235, 370808), (376, 231755), (470, 185404), (940, 92702), (1880, 46351)]