256214252

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{65831}}^1$

素因数の和:65981

約数の個数: 24

約数和(自身を含む): 516122880

約数和(自身を除く): 259908628

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 65831, 131662, 263324, 460817, 921634, 1843268, 9150509, 18301018, 36602036, 64053563, 128107126, 256214252]

約数ペア:

[(1, 256214252), (2, 128107126), (4, 64053563), (7, 36602036), (14, 18301018), (28, 9150509), (139, 1843268), (278, 921634), (556, 460817), (973, 263324), (1946, 131662), (3892, 65831)]