81639404

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3631}}^1$

素因数の和:3726

約数の個数: 48

約数和(自身を含む): 180612096

約数和(自身を除く): 98972692

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 73, 77, 146, 154, 292, 308, 511, 803, 1022, 1606, 2044, 3212, 3631, 5621, 7262, 11242, 14524, 22484, 25417, 39941, 50834, 79882, 101668, 159764, 265063, 279587, 530126, 559174, 1060252, 1118348, 1855441, 2915693, 3710882, 5831386, 7421764, 11662772, 20409851, 40819702, 81639404]

約数ペア:

[(1, 81639404), (2, 40819702), (4, 20409851), (7, 11662772), (11, 7421764), (14, 5831386), (22, 3710882), (28, 2915693), (44, 1855441), (73, 1118348), (77, 1060252), (146, 559174), (154, 530126), (292, 279587), (308, 265063), (511, 159764), (803, 101668), (1022, 79882), (1606, 50834), (2044, 39941), (3212, 25417), (3631, 22484), (5621, 14524), (7262, 11242)]