81959085

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{829}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 154081200

約数和(自身を除く): 72122115

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 829, 845, 1521, 2197, 2487, 2535, 4145, 6591, 7461, 7605, 10777, 10985, 12435, 19773, 32331, 32955, 37305, 53885, 96993, 98865, 140101, 161655, 420303, 484965, 700505, 1260909, 1821313, 2101515, 5463939, 6304545, 9106565, 16391817, 27319695, 81959085]

約数ペア:

[(1, 81959085), (3, 27319695), (5, 16391817), (9, 9106565), (13, 6304545), (15, 5463939), (39, 2101515), (45, 1821313), (65, 1260909), (117, 700505), (169, 484965), (195, 420303), (507, 161655), (585, 140101), (829, 98865), (845, 96993), (1521, 53885), (2197, 37305), (2487, 32955), (2535, 32331), (4145, 19773), (6591, 12435), (7461, 10985), (7605, 10777)]