78128428

素因数分解:

$2^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{7603}}^1$

素因数の和:7981

約数の個数: 24

約数和(自身を含む): 156703232

約数和(自身を除く): 78574804

約数列:

[1, 2, 4, 7, 14, 28, 367, 734, 1468, 2569, 5138, 7603, 10276, 15206, 30412, 53221, 106442, 212884, 2790301, 5580602, 11161204, 19532107, 39064214, 78128428]

約数ペア:

[(1, 78128428), (2, 39064214), (4, 19532107), (7, 11161204), (14, 5580602), (28, 2790301), (367, 212884), (734, 106442), (1468, 53221), (2569, 30412), (5138, 15206), (7603, 10276)]