155123215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1777}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 215066880

約数和(自身を除く): 59943665

約数列:

[1, 5, 13, 17, 65, 79, 85, 221, 395, 1027, 1105, 1343, 1777, 5135, 6715, 8885, 17459, 23101, 30209, 87295, 115505, 140383, 151045, 392717, 701915, 1824979, 1963585, 2386511, 9124895, 11932555, 31024643, 155123215]

約数ペア:

[(1, 155123215), (5, 31024643), (13, 11932555), (17, 9124895), (65, 2386511), (79, 1963585), (85, 1824979), (221, 701915), (395, 392717), (1027, 151045), (1105, 140383), (1343, 115505), (1777, 87295), (5135, 30209), (6715, 23101), (8885, 17459)]