18231580

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3547}}^1$

素因数の和:3813

約数の個数: 24

約数和(自身を含む): 38446128

約数和(自身を除く): 20214548

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 3547, 5140, 7094, 14188, 17735, 35470, 70940, 911579, 1823158, 3646316, 4557895, 9115790, 18231580]

約数ペア:

[(1, 18231580), (2, 9115790), (4, 4557895), (5, 3646316), (10, 1823158), (20, 911579), (257, 70940), (514, 35470), (1028, 17735), (1285, 14188), (2570, 7094), (3547, 5140)]