25215658

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 43681680

約数和(自身を除く): 18466022

約数列:

[1, 2, 13, 17, 26, 34, 89, 178, 221, 442, 641, 1157, 1282, 1513, 2314, 3026, 8333, 10897, 16666, 19669, 21794, 39338, 57049, 114098, 141661, 283322, 741637, 969833, 1483274, 1939666, 12607829, 25215658]

約数ペア:

[(1, 25215658), (2, 12607829), (13, 1939666), (17, 1483274), (26, 969833), (34, 741637), (89, 283322), (178, 141661), (221, 114098), (442, 57049), (641, 39338), (1157, 21794), (1282, 19669), (1513, 16666), (2314, 10897), (3026, 8333)]