2012107720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{14401}}^1$

素因数の和:14918

約数の個数: 64

約数和(自身を含む): 5184720000

約数和(自身を除く): 3172612280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 998, 1996, 2495, 3493, 3992, 4990, 6986, 9980, 13972, 14401, 17465, 19960, 27944, 28802, 34930, 57604, 69860, 72005, 100807, 115208, 139720, 144010, 201614, 288020, 403228, 504035, 576040, 806456, 1008070, 2016140, 4032280, 7186099, 14372198, 28744396, 35930495, 50302693, 57488792, 71860990, 100605386, 143721980, 201210772, 251513465, 287443960, 402421544, 503026930, 1006053860, 2012107720]

約数ペア:

[(1, 2012107720), (2, 1006053860), (4, 503026930), (5, 402421544), (7, 287443960), (8, 251513465), (10, 201210772), (14, 143721980), (20, 100605386), (28, 71860990), (35, 57488792), (40, 50302693), (56, 35930495), (70, 28744396), (140, 14372198), (280, 7186099), (499, 4032280), (998, 2016140), (1996, 1008070), (2495, 806456), (3493, 576040), (3992, 504035), (4990, 403228), (6986, 288020), (9980, 201614), (13972, 144010), (14401, 139720), (17465, 115208), (19960, 100807), (27944, 72005), (28802, 69860), (34930, 57604)]