27720405

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{26783}}^1$

素因数の和:26817

約数の個数: 24

約数和(自身を含む): 50139648

約数和(自身を除く): 22419243

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 26783, 80349, 133915, 241047, 401745, 616009, 1205235, 1848027, 3080045, 5544081, 9240135, 27720405]

約数ペア:

[(1, 27720405), (3, 9240135), (5, 5544081), (9, 3080045), (15, 1848027), (23, 1205235), (45, 616009), (69, 401745), (115, 241047), (207, 133915), (345, 80349), (1035, 26783)]