81316785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1229}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 142404480

約数和(自身を除く): 61087695

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 401, 1203, 1229, 2005, 3687, 4411, 6015, 6145, 13233, 13519, 18435, 22055, 40557, 66165, 67595, 202785, 492829, 1478487, 2464145, 5421119, 7392435, 16263357, 27105595, 81316785]

約数ペア:

[(1, 81316785), (3, 27105595), (5, 16263357), (11, 7392435), (15, 5421119), (33, 2464145), (55, 1478487), (165, 492829), (401, 202785), (1203, 67595), (1229, 66165), (2005, 40557), (3687, 22055), (4411, 18435), (6015, 13519), (6145, 13233)]