19935740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90617}}^1$

素因数の和:90637

約数の個数: 24

約数和(自身を含む): 45671472

約数和(自身を除く): 25735732

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90617, 181234, 362468, 453085, 906170, 996787, 1812340, 1993574, 3987148, 4983935, 9967870, 19935740]

約数ペア:

[(1, 19935740), (2, 9967870), (4, 4983935), (5, 3987148), (10, 1993574), (11, 1812340), (20, 996787), (22, 906170), (44, 453085), (55, 362468), (110, 181234), (220, 90617)]