19542575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 26331648

約数和(自身を除く): 6789073

約数列:

[1, 5, 13, 25, 65, 157, 325, 383, 785, 1915, 2041, 3925, 4979, 9575, 10205, 24895, 51025, 60131, 124475, 300655, 781703, 1503275, 3908515, 19542575]

約数ペア:

[(1, 19542575), (5, 3908515), (13, 1503275), (25, 781703), (65, 300655), (157, 124475), (325, 60131), (383, 51025), (785, 24895), (1915, 10205), (2041, 9575), (3925, 4979)]