642321805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{13267}}^1$

素因数の和:13716

約数の個数: 16

約数和(自身を含む): 806269824

約数和(自身を除く): 163948019

約数列:

[1, 5, 23, 115, 421, 2105, 9683, 13267, 48415, 66335, 305141, 1525705, 5585407, 27927035, 128464361, 642321805]

約数ペア:

[(1, 642321805), (5, 128464361), (23, 27927035), (115, 5585407), (421, 1525705), (2105, 305141), (9683, 66335), (13267, 48415)]