38989220

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4003}}^1$

素因数の和:4499

約数の個数: 24

約数和(自身を含む): 82065984

約数和(自身を除く): 43076764

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4003, 4870, 8006, 9740, 16012, 20015, 40030, 80060, 1949461, 3898922, 7797844, 9747305, 19494610, 38989220]

約数ペア:

[(1, 38989220), (2, 19494610), (4, 9747305), (5, 7797844), (10, 3898922), (20, 1949461), (487, 80060), (974, 40030), (1948, 20015), (2435, 16012), (4003, 9740), (4870, 8006)]