66972865

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{6449}}^1$

素因数の和:6552

約数の個数: 16

約数和(自身を含む): 84211200

約数和(自身を除く): 17238335

約数列:

[1, 5, 31, 67, 155, 335, 2077, 6449, 10385, 32245, 199919, 432083, 999595, 2160415, 13394573, 66972865]

約数ペア:

[(1, 66972865), (5, 13394573), (31, 2160415), (67, 999595), (155, 432083), (335, 199919), (2077, 32245), (6449, 10385)]