81278456

素因数分解:

$2^3\times 7^2\times {\mathrm{207343}}^1$

素因数の和:207363

約数の個数: 24

約数和(自身を含む): 177279120

約数和(自身を除く): 96000664

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 207343, 414686, 829372, 1451401, 1658744, 2902802, 5805604, 10159807, 11611208, 20319614, 40639228, 81278456]

約数ペア:

[(1, 81278456), (2, 40639228), (4, 20319614), (7, 11611208), (8, 10159807), (14, 5805604), (28, 2902802), (49, 1658744), (56, 1451401), (98, 829372), (196, 414686), (392, 207343)]