28016775

素因数分解:

$3^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:776

約数の個数: 36

約数和(自身を含む): 50487840

約数和(自身を除く): 22471065

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 239, 521, 717, 1195, 1563, 2151, 2605, 3585, 4689, 5975, 7815, 10755, 13025, 17925, 23445, 39075, 53775, 117225, 124519, 373557, 622595, 1120671, 1867785, 3112975, 5603355, 9338925, 28016775]

約数ペア:

[(1, 28016775), (3, 9338925), (5, 5603355), (9, 3112975), (15, 1867785), (25, 1120671), (45, 622595), (75, 373557), (225, 124519), (239, 117225), (521, 53775), (717, 39075), (1195, 23445), (1563, 17925), (2151, 13025), (2605, 10755), (3585, 7815), (4689, 5975)]