87031880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5399}}^1$

素因数の和:5454

約数の個数: 64

約数和(自身を含む): 217728000

約数和(自身を除く): 130696120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 5399, 8060, 10798, 16120, 21596, 26995, 43192, 53990, 70187, 107980, 140374, 167369, 215960, 280748, 334738, 350935, 561496, 669476, 701870, 836845, 1338952, 1403740, 1673690, 2175797, 2807480, 3347380, 4351594, 6694760, 8703188, 10878985, 17406376, 21757970, 43515940, 87031880]

約数ペア:

[(1, 87031880), (2, 43515940), (4, 21757970), (5, 17406376), (8, 10878985), (10, 8703188), (13, 6694760), (20, 4351594), (26, 3347380), (31, 2807480), (40, 2175797), (52, 1673690), (62, 1403740), (65, 1338952), (104, 836845), (124, 701870), (130, 669476), (155, 561496), (248, 350935), (260, 334738), (310, 280748), (403, 215960), (520, 167369), (620, 140374), (806, 107980), (1240, 70187), (1612, 53990), (2015, 43192), (3224, 26995), (4030, 21596), (5399, 16120), (8060, 10798)]