20880756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{44617}}^1$

素因数の和:44640

約数の個数: 36

約数和(自身を含む): 56843332

約数和(自身を除く): 35962576

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 44617, 89234, 133851, 178468, 267702, 401553, 535404, 580021, 803106, 1160042, 1606212, 1740063, 2320084, 3480126, 5220189, 6960252, 10440378, 20880756]

約数ペア:

[(1, 20880756), (2, 10440378), (3, 6960252), (4, 5220189), (6, 3480126), (9, 2320084), (12, 1740063), (13, 1606212), (18, 1160042), (26, 803106), (36, 580021), (39, 535404), (52, 401553), (78, 267702), (117, 178468), (156, 133851), (234, 89234), (468, 44617)]