139731880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112687}}^1$

素因数の和:112729

約数の個数: 32

約数和(自身を含む): 324541440

約数和(自身を除く): 184809560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 112687, 225374, 450748, 563435, 901496, 1126870, 2253740, 3493297, 4507480, 6986594, 13973188, 17466485, 27946376, 34932970, 69865940, 139731880]

約数ペア:

[(1, 139731880), (2, 69865940), (4, 34932970), (5, 27946376), (8, 17466485), (10, 13973188), (20, 6986594), (31, 4507480), (40, 3493297), (62, 2253740), (124, 1126870), (155, 901496), (248, 563435), (310, 450748), (620, 225374), (1240, 112687)]