2002121380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2042981}}^1$

素因数の和:2043004

約数の個数: 36

約数和(自身を含む): 4890898908

約数和(自身を除く): 2888777528

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2042981, 4085962, 8171924, 10214905, 14300867, 20429810, 28601734, 40859620, 57203468, 71504335, 100106069, 143008670, 200212138, 286017340, 400424276, 500530345, 1001060690, 2002121380]

約数ペア:

[(1, 2002121380), (2, 1001060690), (4, 500530345), (5, 400424276), (7, 286017340), (10, 200212138), (14, 143008670), (20, 100106069), (28, 71504335), (35, 57203468), (49, 40859620), (70, 28601734), (98, 20429810), (140, 14300867), (196, 10214905), (245, 8171924), (490, 4085962), (980, 2042981)]