20139305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7643}}^1$

素因数の和:7696

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 6278359

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 7643, 38215, 129931, 236933, 649655, 1184665, 4027861, 20139305]

約数ペア:

[(1, 20139305), (5, 4027861), (17, 1184665), (31, 649655), (85, 236933), (155, 129931), (527, 38215), (2635, 7643)]