28779825

素因数分解:

$3^1\times 5^2\times {\mathrm{499}}^1\times {\mathrm{769}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 47740000

約数和(自身を除く): 18960175

約数列:

[1, 3, 5, 15, 25, 75, 499, 769, 1497, 2307, 2495, 3845, 7485, 11535, 12475, 19225, 37425, 57675, 383731, 1151193, 1918655, 5755965, 9593275, 28779825]

約数ペア:

[(1, 28779825), (3, 9593275), (5, 5755965), (15, 1918655), (25, 1151193), (75, 383731), (499, 57675), (769, 37425), (1497, 19225), (2307, 12475), (2495, 11535), (3845, 7485)]