85312840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20707}}^1$

素因数の和:20821

約数の個数: 32

約数和(自身を含む): 193826880

約数和(自身を除く): 108514040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 20707, 41414, 82828, 103535, 165656, 207070, 414140, 828280, 2132821, 4265642, 8531284, 10664105, 17062568, 21328210, 42656420, 85312840]

約数ペア:

[(1, 85312840), (2, 42656420), (4, 21328210), (5, 17062568), (8, 10664105), (10, 8531284), (20, 4265642), (40, 2132821), (103, 828280), (206, 414140), (412, 207070), (515, 165656), (824, 103535), (1030, 82828), (2060, 41414), (4120, 20707)]