64590005

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1619}}^1$

素因数の和:1804

約数の個数: 16

約数和(自身を含む): 79315200

約数和(自身を除く): 14725195

約数列:

[1, 5, 79, 101, 395, 505, 1619, 7979, 8095, 39895, 127901, 163519, 639505, 817595, 12918001, 64590005]

約数ペア:

[(1, 64590005), (5, 12918001), (79, 817595), (101, 639505), (395, 163519), (505, 127901), (1619, 39895), (7979, 8095)]