420046540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1235431}}^1$

素因数の和:1235457

約数の個数: 24

約数和(自身を含む): 933986592

約数和(自身を除く): 513940052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1235431, 2470862, 4941724, 6177155, 12354310, 21002327, 24708620, 42004654, 84009308, 105011635, 210023270, 420046540]

約数ペア:

[(1, 420046540), (2, 210023270), (4, 105011635), (5, 84009308), (10, 42004654), (17, 24708620), (20, 21002327), (34, 12354310), (68, 6177155), (85, 4941724), (170, 2470862), (340, 1235431)]