16909880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1049}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 25426120

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, 1049, 1240, 1612, 2015, 2098, 3224, 4030, 4196, 5245, 8060, 8392, 10490, 13637, 16120, 20980, 27274, 32519, 41960, 54548, 65038, 68185, 109096, 130076, 136370, 162595, 260152, 272740, 325190, 422747, 545480, 650380, 845494, 1300760, 1690988, 2113735, 3381976, 4227470, 8454940, 16909880]

約数ペア:

[(1, 16909880), (2, 8454940), (4, 4227470), (5, 3381976), (8, 2113735), (10, 1690988), (13, 1300760), (20, 845494), (26, 650380), (31, 545480), (40, 422747), (52, 325190), (62, 272740), (65, 260152), (104, 162595), (124, 136370), (130, 130076), (155, 109096), (248, 68185), (260, 65038), (310, 54548), (403, 41960), (520, 32519), (620, 27274), (806, 20980), (1049, 16120), (1240, 13637), (1612, 10490), (2015, 8392), (2098, 8060), (3224, 5245), (4030, 4196)]