72010100

素因数分解:

$2^2\times 5^2\times {\mathrm{720101}}^1$

素因数の和:720115

約数の個数: 18

約数和(自身を含む): 156262134

約数和(自身を除く): 84252034

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 720101, 1440202, 2880404, 3600505, 7201010, 14402020, 18002525, 36005050, 72010100]

約数ペア:

[(1, 72010100), (2, 36005050), (4, 18002525), (5, 14402020), (10, 7201010), (20, 3600505), (25, 2880404), (50, 1440202), (100, 720101)]