201647740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205763}}^1$

素因数の和:205786

約数の個数: 36

約数和(自身を含む): 492599016

約数和(自身を除く): 290951276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205763, 411526, 823052, 1028815, 1440341, 2057630, 2880682, 4115260, 5761364, 7201705, 10082387, 14403410, 20164774, 28806820, 40329548, 50411935, 100823870, 201647740]

約数ペア:

[(1, 201647740), (2, 100823870), (4, 50411935), (5, 40329548), (7, 28806820), (10, 20164774), (14, 14403410), (20, 10082387), (28, 7201705), (35, 5761364), (49, 4115260), (70, 2880682), (98, 2057630), (140, 1440341), (196, 1028815), (245, 823052), (490, 411526), (980, 205763)]