51156580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{457}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 111953520

約数和(自身を除く): 60796940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 193, 290, 386, 457, 580, 772, 914, 965, 1828, 1930, 2285, 3860, 4570, 5597, 9140, 11194, 13253, 22388, 26506, 27985, 53012, 55970, 66265, 88201, 111940, 132530, 176402, 265060, 352804, 441005, 882010, 1764020, 2557829, 5115658, 10231316, 12789145, 25578290, 51156580]

約数ペア:

[(1, 51156580), (2, 25578290), (4, 12789145), (5, 10231316), (10, 5115658), (20, 2557829), (29, 1764020), (58, 882010), (116, 441005), (145, 352804), (193, 265060), (290, 176402), (386, 132530), (457, 111940), (580, 88201), (772, 66265), (914, 55970), (965, 53012), (1828, 27985), (1930, 26506), (2285, 22388), (3860, 13253), (4570, 11194), (5597, 9140)]