20269785

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1433}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 34691328

約数和(自身を除く): 14421543

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1433, 2829, 4299, 4715, 7165, 14145, 21495, 32959, 58753, 98877, 164795, 176259, 293765, 494385, 881295, 1351319, 4053957, 6756595, 20269785]

約数ペア:

[(1, 20269785), (3, 6756595), (5, 4053957), (15, 1351319), (23, 881295), (41, 494385), (69, 293765), (115, 176259), (123, 164795), (205, 98877), (345, 58753), (615, 32959), (943, 21495), (1433, 14145), (2829, 7165), (4299, 4715)]