421701980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{28151}}^1$

素因数の和:28274

約数の個数: 48

約数和(自身を含む): 1021579776

約数和(自身を除く): 599877796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1498, 2140, 2996, 3745, 7490, 14980, 28151, 56302, 112604, 140755, 197057, 281510, 394114, 563020, 788228, 985285, 1970570, 3012157, 3941140, 6024314, 12048628, 15060785, 21085099, 30121570, 42170198, 60243140, 84340396, 105425495, 210850990, 421701980]

約数ペア:

[(1, 421701980), (2, 210850990), (4, 105425495), (5, 84340396), (7, 60243140), (10, 42170198), (14, 30121570), (20, 21085099), (28, 15060785), (35, 12048628), (70, 6024314), (107, 3941140), (140, 3012157), (214, 1970570), (428, 985285), (535, 788228), (749, 563020), (1070, 394114), (1498, 281510), (2140, 197057), (2996, 140755), (3745, 112604), (7490, 56302), (14980, 28151)]