81225340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82883}}^1$

素因数の和:82906

約数の個数: 36

約数和(自身を含む): 198424296

約数和(自身を除く): 117198956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82883, 165766, 331532, 414415, 580181, 828830, 1160362, 1657660, 2320724, 2900905, 4061267, 5801810, 8122534, 11603620, 16245068, 20306335, 40612670, 81225340]

約数ペア:

[(1, 81225340), (2, 40612670), (4, 20306335), (5, 16245068), (7, 11603620), (10, 8122534), (14, 5801810), (20, 4061267), (28, 2900905), (35, 2320724), (49, 1657660), (70, 1160362), (98, 828830), (140, 580181), (196, 414415), (245, 331532), (490, 165766), (980, 82883)]