20197980742

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7486279}}^1$

素因数の和:7486371

約数の個数: 16

約数和(自身を含む): 32340729600

約数和(自身を除く): 12142748858

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7486279, 14972558, 142239301, 284478602, 531525809, 1063051618, 10098990371, 20197980742]

約数ペア:

[(1, 20197980742), (2, 10098990371), (19, 1063051618), (38, 531525809), (71, 284478602), (142, 142239301), (1349, 14972558), (2698, 7486279)]