4068804580

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{101771}}^1$

素因数の和:103779

約数の個数: 24

約数和(自身を含む): 8548848000

約数和(自身を除く): 4480043420

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3998, 7996, 9995, 19990, 39980, 101771, 203542, 407084, 508855, 1017710, 2035420, 203440229, 406880458, 813760916, 1017201145, 2034402290, 4068804580]

約数ペア:

[(1, 4068804580), (2, 2034402290), (4, 1017201145), (5, 813760916), (10, 406880458), (20, 203440229), (1999, 2035420), (3998, 1017710), (7996, 508855), (9995, 407084), (19990, 203542), (39980, 101771)]