9969372740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{17881}}^1$

素因数の和:18408

約数の個数: 48

約数和(自身を含む): 21326645424

約数和(自身を除く): 11357272684

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 457, 610, 914, 1220, 1828, 2285, 4570, 9140, 17881, 27877, 35762, 55754, 71524, 89405, 111508, 139385, 178810, 278770, 357620, 557540, 1090741, 2181482, 4362964, 5453705, 8171617, 10907410, 16343234, 21814820, 32686468, 40858085, 81716170, 163432340, 498468637, 996937274, 1993874548, 2492343185, 4984686370, 9969372740]

約数ペア:

[(1, 9969372740), (2, 4984686370), (4, 2492343185), (5, 1993874548), (10, 996937274), (20, 498468637), (61, 163432340), (122, 81716170), (244, 40858085), (305, 32686468), (457, 21814820), (610, 16343234), (914, 10907410), (1220, 8171617), (1828, 5453705), (2285, 4362964), (4570, 2181482), (9140, 1090741), (17881, 557540), (27877, 357620), (35762, 278770), (55754, 178810), (71524, 139385), (89405, 111508)]