28191825

素因数分解:

$3^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1171}}^1$

素因数の和:1294

約数の個数: 36

約数和(自身を含む): 51010128

約数和(自身を除く): 22818303

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 107, 225, 321, 535, 963, 1171, 1605, 2675, 3513, 4815, 5855, 8025, 10539, 17565, 24075, 29275, 52695, 87825, 125297, 263475, 375891, 626485, 1127673, 1879455, 3132425, 5638365, 9397275, 28191825]

約数ペア:

[(1, 28191825), (3, 9397275), (5, 5638365), (9, 3132425), (15, 1879455), (25, 1127673), (45, 626485), (75, 375891), (107, 263475), (225, 125297), (321, 87825), (535, 52695), (963, 29275), (1171, 24075), (1605, 17565), (2675, 10539), (3513, 8025), (4815, 5855)]