28005975

素因数分解:

$3^2\times 5^2\times {\mathrm{124471}}^1$

素因数の和:124487

約数の個数: 18

約数和(自身を含む): 50162216

約数和(自身を除く): 22156241

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 124471, 373413, 622355, 1120239, 1867065, 3111775, 5601195, 9335325, 28005975]

約数ペア:

[(1, 28005975), (3, 9335325), (5, 5601195), (9, 3111775), (15, 1867065), (25, 1120239), (45, 622355), (75, 373413), (225, 124471)]