18231620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 24104380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1049, 1580, 1738, 2098, 3476, 4196, 4345, 5245, 8690, 10490, 11539, 17380, 20980, 23078, 46156, 57695, 82871, 115390, 165742, 230780, 331484, 414355, 828710, 911581, 1657420, 1823162, 3646324, 4557905, 9115810, 18231620]

約数ペア:

[(1, 18231620), (2, 9115810), (4, 4557905), (5, 3646324), (10, 1823162), (11, 1657420), (20, 911581), (22, 828710), (44, 414355), (55, 331484), (79, 230780), (110, 165742), (158, 115390), (220, 82871), (316, 57695), (395, 46156), (790, 23078), (869, 20980), (1049, 17380), (1580, 11539), (1738, 10490), (2098, 8690), (3476, 5245), (4196, 4345)]