31381578

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1031}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 72446400

約数和(自身を除く): 41064822

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 801, 1031, 1602, 1691, 2062, 3093, 3382, 5073, 6186, 9279, 10146, 15219, 18558, 19589, 30438, 39178, 58767, 91759, 117534, 176301, 183518, 275277, 352602, 550554, 825831, 1651662, 1743421, 3486842, 5230263, 10460526, 15690789, 31381578]

約数ペア:

[(1, 31381578), (2, 15690789), (3, 10460526), (6, 5230263), (9, 3486842), (18, 1743421), (19, 1651662), (38, 825831), (57, 550554), (89, 352602), (114, 275277), (171, 183518), (178, 176301), (267, 117534), (342, 91759), (534, 58767), (801, 39178), (1031, 30438), (1602, 19589), (1691, 18558), (2062, 15219), (3093, 10146), (3382, 9279), (5073, 6186)]