20116785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1453}}^1$

素因数の和:1545

約数の個数: 32

約数和(自身を含む): 35175168

約数和(自身を除く): 15058383

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1453, 2769, 4359, 4615, 7265, 13845, 18889, 21795, 56667, 94445, 103163, 283335, 309489, 515815, 1341119, 1547445, 4023357, 6705595, 20116785]

約数ペア:

[(1, 20116785), (3, 6705595), (5, 4023357), (13, 1547445), (15, 1341119), (39, 515815), (65, 309489), (71, 283335), (195, 103163), (213, 94445), (355, 56667), (923, 21795), (1065, 18889), (1453, 13845), (2769, 7265), (4359, 4615)]