28208505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{144659}}^1$

素因数の和:144680

約数の個数: 16

約数和(自身を含む): 48605760

約数和(自身を除く): 20397255

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 144659, 433977, 723295, 1880567, 2169885, 5641701, 9402835, 28208505]

約数ペア:

[(1, 28208505), (3, 9402835), (5, 5641701), (13, 2169885), (15, 1880567), (39, 723295), (65, 433977), (195, 144659)]