12540405

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 21159936

約数和(自身を除く): 8619531

約数列:

[1, 3, 5, 15, 23, 69, 115, 163, 223, 345, 489, 669, 815, 1115, 2445, 3345, 3749, 5129, 11247, 15387, 18745, 25645, 36349, 56235, 76935, 109047, 181745, 545235, 836027, 2508081, 4180135, 12540405]

約数ペア:

[(1, 12540405), (3, 4180135), (5, 2508081), (15, 836027), (23, 545235), (69, 181745), (115, 109047), (163, 76935), (223, 56235), (345, 36349), (489, 25645), (669, 18745), (815, 15387), (1115, 11247), (2445, 5129), (3345, 3749)]