40387005

素因数分解:

$3^4\times 5^1\times {\mathrm{99721}}^1$

素因数の和:99738

約数の個数: 20

約数和(自身を含む): 72398172

約数和(自身を除く): 32011167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 99721, 299163, 498605, 897489, 1495815, 2692467, 4487445, 8077401, 13462335, 40387005]

約数ペア:

[(1, 40387005), (3, 13462335), (5, 8077401), (9, 4487445), (15, 2692467), (27, 1495815), (45, 897489), (81, 498605), (135, 299163), (405, 99721)]