20145684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1451}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 51226560

約数和(自身を除く): 31080876

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 89, 156, 178, 267, 356, 534, 1068, 1157, 1451, 2314, 2902, 3471, 4353, 4628, 5804, 6942, 8706, 13884, 17412, 18863, 37726, 56589, 75452, 113178, 129139, 226356, 258278, 387417, 516556, 774834, 1549668, 1678807, 3357614, 5036421, 6715228, 10072842, 20145684]

約数ペア:

[(1, 20145684), (2, 10072842), (3, 6715228), (4, 5036421), (6, 3357614), (12, 1678807), (13, 1549668), (26, 774834), (39, 516556), (52, 387417), (78, 258278), (89, 226356), (156, 129139), (178, 113178), (267, 75452), (356, 56589), (534, 37726), (1068, 18863), (1157, 17412), (1451, 13884), (2314, 8706), (2902, 6942), (3471, 5804), (4353, 4628)]