20045508

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{467}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 55272672

約数和(自身を除く): 35227164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 73, 84, 98, 146, 147, 196, 219, 292, 294, 438, 467, 511, 588, 876, 934, 1022, 1401, 1533, 1868, 2044, 2802, 3066, 3269, 3577, 5604, 6132, 6538, 7154, 9807, 10731, 13076, 14308, 19614, 21462, 22883, 34091, 39228, 42924, 45766, 68182, 68649, 91532, 102273, 136364, 137298, 204546, 238637, 274596, 409092, 477274, 715911, 954548, 1431822, 1670459, 2863644, 3340918, 5011377, 6681836, 10022754, 20045508]

約数ペア:

[(1, 20045508), (2, 10022754), (3, 6681836), (4, 5011377), (6, 3340918), (7, 2863644), (12, 1670459), (14, 1431822), (21, 954548), (28, 715911), (42, 477274), (49, 409092), (73, 274596), (84, 238637), (98, 204546), (146, 137298), (147, 136364), (196, 102273), (219, 91532), (292, 68649), (294, 68182), (438, 45766), (467, 42924), (511, 39228), (588, 34091), (876, 22883), (934, 21462), (1022, 19614), (1401, 14308), (1533, 13076), (1868, 10731), (2044, 9807), (2802, 7154), (3066, 6538), (3269, 6132), (3577, 5604)]