128840247

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2609}}^1$

素因数の和:2708

約数の個数: 32

約数和(自身を含む): 200448000

約数和(自身を除く): 71607753

約数列:

[1, 3, 9, 27, 31, 59, 93, 177, 279, 531, 837, 1593, 1829, 2609, 5487, 7827, 16461, 23481, 49383, 70443, 80879, 153931, 242637, 461793, 727911, 1385379, 2183733, 4156137, 4771861, 14315583, 42946749, 128840247]

約数ペア:

[(1, 128840247), (3, 42946749), (9, 14315583), (27, 4771861), (31, 4156137), (59, 2183733), (93, 1385379), (177, 727911), (279, 461793), (531, 242637), (837, 153931), (1593, 80879), (1829, 70443), (2609, 49383), (5487, 23481), (7827, 16461)]