28443805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25741}}^1$

素因数の和:25776

約数の個数: 16

約数和(自身を含む): 38921904

約数和(自身を除く): 10478099

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 25741, 128705, 334633, 437597, 1673165, 2187985, 5688761, 28443805]

約数ペア:

[(1, 28443805), (5, 5688761), (13, 2187985), (17, 1673165), (65, 437597), (85, 334633), (221, 128705), (1105, 25741)]