320972015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{30671}}^1$

素因数の和:30719

約数の個数: 32

約数和(自身を含む): 494678016

約数和(自身を除く): 173706001

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2093, 10465, 30671, 153355, 214697, 398723, 705433, 1073485, 1993615, 2791061, 3527165, 4938031, 9170629, 13955305, 24690155, 45853145, 64194403, 320972015]

約数ペア:

[(1, 320972015), (5, 64194403), (7, 45853145), (13, 24690155), (23, 13955305), (35, 9170629), (65, 4938031), (91, 3527165), (115, 2791061), (161, 1993615), (299, 1073485), (455, 705433), (805, 398723), (1495, 214697), (2093, 153355), (10465, 30671)]