247808215940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{656237}}^1$

素因数の和:656564

約数の個数: 48

約数和(自身を含む): 529190323200

約数和(自身を除く): 281382107260

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 239, 316, 395, 478, 790, 956, 1195, 1580, 2390, 4780, 18881, 37762, 75524, 94405, 188810, 377620, 656237, 1312474, 2624948, 3281185, 6562370, 13124740, 51842723, 103685446, 156840643, 207370892, 259213615, 313681286, 518427230, 627362572, 784203215, 1036854460, 1568406430, 3136812860, 12390410797, 24780821594, 49561643188, 61952053985, 123904107970, 247808215940]

約数ペア:

[(1, 247808215940), (2, 123904107970), (4, 61952053985), (5, 49561643188), (10, 24780821594), (20, 12390410797), (79, 3136812860), (158, 1568406430), (239, 1036854460), (316, 784203215), (395, 627362572), (478, 518427230), (790, 313681286), (956, 259213615), (1195, 207370892), (1580, 156840643), (2390, 103685446), (4780, 51842723), (18881, 13124740), (37762, 6562370), (75524, 3281185), (94405, 2624948), (188810, 1312474), (377620, 656237)]