280784718

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{23743}}^1$

素因数の和:23830

約数の個数: 40

約数和(自身を含む): 637811328

約数和(自身を除く): 357026610

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 438, 657, 1314, 1971, 3942, 5913, 11826, 23743, 47486, 71229, 142458, 213687, 427374, 641061, 1282122, 1733239, 1923183, 3466478, 3846366, 5199717, 10399434, 15599151, 31198302, 46797453, 93594906, 140392359, 280784718]

約数ペア:

[(1, 280784718), (2, 140392359), (3, 93594906), (6, 46797453), (9, 31198302), (18, 15599151), (27, 10399434), (54, 5199717), (73, 3846366), (81, 3466478), (146, 1923183), (162, 1733239), (219, 1282122), (438, 641061), (657, 427374), (1314, 213687), (1971, 142458), (3942, 71229), (5913, 47486), (11826, 23743)]