209120620

素因数分解:

$2^2\times 5^1\times {\mathrm{2447}}^1\times {\mathrm{4273}}^1$

素因数の和:6729

約数の個数: 24

約数和(自身を含む): 439435584

約数和(自身を除く): 230314964

約数列:

[1, 2, 4, 5, 10, 20, 2447, 4273, 4894, 8546, 9788, 12235, 17092, 21365, 24470, 42730, 48940, 85460, 10456031, 20912062, 41824124, 52280155, 104560310, 209120620]

約数ペア:

[(1, 209120620), (2, 104560310), (4, 52280155), (5, 41824124), (10, 20912062), (20, 10456031), (2447, 85460), (4273, 48940), (4894, 42730), (8546, 24470), (9788, 21365), (12235, 17092)]