189945805

素因数分解:

$5^1\times 7^2\times {\mathrm{491}}^1\times {\mathrm{1579}}^1$

素因数の和:2089

約数の個数: 24

約数和(自身を含む): 265857120

約数和(自身を除く): 75911315

約数列:

[1, 5, 7, 35, 49, 245, 491, 1579, 2455, 3437, 7895, 11053, 17185, 24059, 55265, 77371, 120295, 386855, 775289, 3876445, 5427023, 27135115, 37989161, 189945805]

約数ペア:

[(1, 189945805), (5, 37989161), (7, 27135115), (35, 5427023), (49, 3876445), (245, 775289), (491, 386855), (1579, 120295), (2455, 77371), (3437, 55265), (7895, 24059), (11053, 17185)]