81129020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{1579}}^1$

素因数の和:1962

約数の個数: 48

約数和(自身を含む): 195363840

約数和(自身を除く): 114234820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 367, 734, 1468, 1579, 1835, 2569, 3158, 3670, 5138, 6316, 7340, 7895, 10276, 11053, 12845, 15790, 22106, 25690, 31580, 44212, 51380, 55265, 110530, 221060, 579493, 1158986, 2317972, 2897465, 4056451, 5794930, 8112902, 11589860, 16225804, 20282255, 40564510, 81129020]

約数ペア:

[(1, 81129020), (2, 40564510), (4, 20282255), (5, 16225804), (7, 11589860), (10, 8112902), (14, 5794930), (20, 4056451), (28, 2897465), (35, 2317972), (70, 1158986), (140, 579493), (367, 221060), (734, 110530), (1468, 55265), (1579, 51380), (1835, 44212), (2569, 31580), (3158, 25690), (3670, 22106), (5138, 15790), (6316, 12845), (7340, 11053), (7895, 10276)]