27804570760

素因数分解:

$2^3\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{347731}}^1$

素因数の和:349741

約数の個数: 32

約数和(自身を含む): 62591760000

約数和(自身を除く): 34787189240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999, 3998, 7996, 9995, 15992, 19990, 39980, 79960, 347731, 695462, 1390924, 1738655, 2781848, 3477310, 6954620, 13909240, 695114269, 1390228538, 2780457076, 3475571345, 5560914152, 6951142690, 13902285380, 27804570760]

約数ペア:

[(1, 27804570760), (2, 13902285380), (4, 6951142690), (5, 5560914152), (8, 3475571345), (10, 2780457076), (20, 1390228538), (40, 695114269), (1999, 13909240), (3998, 6954620), (7996, 3477310), (9995, 2781848), (15992, 1738655), (19990, 1390924), (39980, 695462), (79960, 347731)]