20786587904

素因数分解:

$2^8\times {\mathrm{193}}^1\times {\mathrm{449}}^1\times {\mathrm{937}}^1$

素因数の和:1595

約数の個数: 72

約数和(自身を含む): 41844461400

約数和(自身を除く): 21057873496

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 256, 386, 449, 772, 898, 937, 1544, 1796, 1874, 3088, 3592, 3748, 6176, 7184, 7496, 12352, 14368, 14992, 24704, 28736, 29984, 49408, 57472, 59968, 86657, 114944, 119936, 173314, 180841, 239872, 346628, 361682, 420713, 693256, 723364, 841426, 1386512, 1446728, 1682852, 2773024, 2893456, 3365704, 5546048, 5786912, 6731408, 11092096, 11573824, 13462816, 22184192, 23147648, 26925632, 46295296, 53851264, 81197609, 107702528, 162395218, 324790436, 649580872, 1299161744, 2598323488, 5196646976, 10393293952, 20786587904]

約数ペア:

[(1, 20786587904), (2, 10393293952), (4, 5196646976), (8, 2598323488), (16, 1299161744), (32, 649580872), (64, 324790436), (128, 162395218), (193, 107702528), (256, 81197609), (386, 53851264), (449, 46295296), (772, 26925632), (898, 23147648), (937, 22184192), (1544, 13462816), (1796, 11573824), (1874, 11092096), (3088, 6731408), (3592, 5786912), (3748, 5546048), (6176, 3365704), (7184, 2893456), (7496, 2773024), (12352, 1682852), (14368, 1446728), (14992, 1386512), (24704, 841426), (28736, 723364), (29984, 693256), (49408, 420713), (57472, 361682), (59968, 346628), (86657, 239872), (114944, 180841), (119936, 173314)]