81951352

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47207}}^1$

素因数の和:47251

約数の個数: 32

約数和(自身を含む): 181278720

約数和(自身を除く): 99327368

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 47207, 94414, 188828, 330449, 377656, 660898, 1321796, 1463417, 2643592, 2926834, 5853668, 10243919, 11707336, 20487838, 40975676, 81951352]

約数ペア:

[(1, 81951352), (2, 40975676), (4, 20487838), (7, 11707336), (8, 10243919), (14, 5853668), (28, 2926834), (31, 2643592), (56, 1463417), (62, 1321796), (124, 660898), (217, 377656), (248, 330449), (434, 188828), (868, 94414), (1736, 47207)]