20386760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7607}}^1$

素因数の和:7685

約数の個数: 32

約数和(自身を含む): 46560960

約数和(自身を除く): 26174200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7607, 15214, 30428, 38035, 60856, 76070, 152140, 304280, 509669, 1019338, 2038676, 2548345, 4077352, 5096690, 10193380, 20386760]

約数ペア:

[(1, 20386760), (2, 10193380), (4, 5096690), (5, 4077352), (8, 2548345), (10, 2038676), (20, 1019338), (40, 509669), (67, 304280), (134, 152140), (268, 76070), (335, 60856), (536, 38035), (670, 30428), (1340, 15214), (2680, 7607)]