11457980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8069}}^1$

素因数の和:8149

約数の個数: 24

約数和(自身を含む): 24403680

約数和(自身を除く): 12945700

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8069, 16138, 32276, 40345, 80690, 161380, 572899, 1145798, 2291596, 2864495, 5728990, 11457980]

約数ペア:

[(1, 11457980), (2, 5728990), (4, 2864495), (5, 2291596), (10, 1145798), (20, 572899), (71, 161380), (142, 80690), (284, 40345), (355, 32276), (710, 16138), (1420, 8069)]