72012100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{16747}}^1$

素因数の和:16804

約数の個数: 36

約数和(自身を含む): 159909904

約数和(自身を除く): 87897804

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 16747, 33494, 66988, 83735, 167470, 334940, 418675, 720121, 837350, 1440242, 1674700, 2880484, 3600605, 7201210, 14402420, 18003025, 36006050, 72012100]

約数ペア:

[(1, 72012100), (2, 36006050), (4, 18003025), (5, 14402420), (10, 7201210), (20, 3600605), (25, 2880484), (43, 1674700), (50, 1440242), (86, 837350), (100, 720121), (172, 418675), (215, 334940), (430, 167470), (860, 83735), (1075, 66988), (2150, 33494), (4300, 16747)]