9701473780

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{489479}}^1$

素因数の和:490479

約数の個数: 24

約数和(自身を含む): 20393694720

約数和(自身を除く): 10692220940

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 9910, 19820, 489479, 978958, 1957916, 2447395, 4894790, 9789580, 485073689, 970147378, 1940294756, 2425368445, 4850736890, 9701473780]

約数ペア:

[(1, 9701473780), (2, 4850736890), (4, 2425368445), (5, 1940294756), (10, 970147378), (20, 485073689), (991, 9789580), (1982, 4894790), (3964, 2447395), (4955, 1957916), (9910, 978958), (19820, 489479)]