404750571880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{142517807}}^1$

素因数の和:142517889

約数の個数: 32

約数和(自身を含む): 923515395840

約数和(自身を除く): 518764823960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 142517807, 285035614, 570071228, 712589035, 1140142456, 1425178070, 2850356140, 5700712280, 10118764297, 20237528594, 40475057188, 50593821485, 80950114376, 101187642970, 202375285940, 404750571880]

約数ペア:

[(1, 404750571880), (2, 202375285940), (4, 101187642970), (5, 80950114376), (8, 50593821485), (10, 40475057188), (20, 20237528594), (40, 10118764297), (71, 5700712280), (142, 2850356140), (284, 1425178070), (355, 1140142456), (568, 712589035), (710, 570071228), (1420, 285035614), (2840, 142517807)]