156989495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{401}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 214764480

約数和(自身を除く): 57774985

約数列:

[1, 5, 13, 19, 65, 95, 247, 317, 401, 1235, 1585, 2005, 4121, 5213, 6023, 7619, 20605, 26065, 30115, 38095, 78299, 99047, 127117, 391495, 495235, 635585, 1652521, 2415223, 8262605, 12076115, 31397899, 156989495]

約数ペア:

[(1, 156989495), (5, 31397899), (13, 12076115), (19, 8262605), (65, 2415223), (95, 1652521), (247, 635585), (317, 495235), (401, 391495), (1235, 127117), (1585, 99047), (2005, 78299), (4121, 38095), (5213, 30115), (6023, 26065), (7619, 20605)]