201025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:81

約数の個数: 24

約数和(自身を含む): 294624

約数和(自身を除く): 93599

約数列:

[1, 5, 11, 17, 25, 43, 55, 85, 187, 215, 275, 425, 473, 731, 935, 1075, 2365, 3655, 4675, 8041, 11825, 18275, 40205, 201025]

約数ペア:

[(1, 201025), (5, 40205), (11, 18275), (17, 11825), (25, 8041), (43, 4675), (55, 3655), (85, 2365), (187, 1075), (215, 935), (275, 731), (425, 473)]