127968620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15877}}^1$

素因数の和:15930

約数の個数: 48

約数和(自身を含む): 298760448

約数和(自身を除く): 170791828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 15877, 31754, 63508, 79385, 158770, 206401, 317540, 412802, 492187, 825604, 984374, 1032005, 1968748, 2064010, 2460935, 4128020, 4921870, 6398431, 9843740, 12796862, 25593724, 31992155, 63984310, 127968620]

約数ペア:

[(1, 127968620), (2, 63984310), (4, 31992155), (5, 25593724), (10, 12796862), (13, 9843740), (20, 6398431), (26, 4921870), (31, 4128020), (52, 2460935), (62, 2064010), (65, 1968748), (124, 1032005), (130, 984374), (155, 825604), (260, 492187), (310, 412802), (403, 317540), (620, 206401), (806, 158770), (1612, 79385), (2015, 63508), (4030, 31754), (8060, 15877)]