28743585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 49824768

約数和(自身を除く): 21081183

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 223, 661, 669, 1115, 1983, 2899, 3305, 3345, 8593, 8697, 9915, 14495, 25779, 42965, 43485, 128895, 147403, 442209, 737015, 1916239, 2211045, 5748717, 9581195, 28743585]

約数ペア:

[(1, 28743585), (3, 9581195), (5, 5748717), (13, 2211045), (15, 1916239), (39, 737015), (65, 442209), (195, 147403), (223, 128895), (661, 43485), (669, 42965), (1115, 25779), (1983, 14495), (2899, 9915), (3305, 8697), (3345, 8593)]