8420702980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2039}}^1\times {\mathrm{6661}}^1$

素因数の和:8740

約数の個数: 48

約数和(自身を含む): 18265605120

約数和(自身を除く): 9844902140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2039, 4078, 6661, 8156, 10195, 13322, 20390, 26644, 33305, 40780, 63209, 66610, 126418, 133220, 206491, 252836, 316045, 412982, 632090, 825964, 1032455, 1264180, 2064910, 4129820, 13581779, 27163558, 54327116, 67908895, 135817790, 271635580, 421035149, 842070298, 1684140596, 2105175745, 4210351490, 8420702980]

約数ペア:

[(1, 8420702980), (2, 4210351490), (4, 2105175745), (5, 1684140596), (10, 842070298), (20, 421035149), (31, 271635580), (62, 135817790), (124, 67908895), (155, 54327116), (310, 27163558), (620, 13581779), (2039, 4129820), (4078, 2064910), (6661, 1264180), (8156, 1032455), (10195, 825964), (13322, 632090), (20390, 412982), (26644, 316045), (33305, 252836), (40780, 206491), (63209, 133220), (66610, 126418)]