28578745

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 38368512

約数和(自身を除く): 9789767

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 845, 1091, 2015, 5239, 5455, 14183, 26195, 33821, 70915, 169105, 184379, 439673, 921895, 2198365, 5715749, 28578745]

約数ペア:

[(1, 28578745), (5, 5715749), (13, 2198365), (31, 921895), (65, 439673), (155, 184379), (169, 169105), (403, 70915), (845, 33821), (1091, 26195), (2015, 14183), (5239, 5455)]