68289136

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{251063}}^1$

素因数の和:251088

約数の個数: 20

約数和(自身を含む): 140093712

約数和(自身を除く): 71804576

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 251063, 502126, 1004252, 2008504, 4017008, 4268071, 8536142, 17072284, 34144568, 68289136]

約数ペア:

[(1, 68289136), (2, 34144568), (4, 17072284), (8, 8536142), (16, 4268071), (17, 4017008), (34, 2008504), (68, 1004252), (136, 502126), (272, 251063)]