331472720

素因数分解:

$2^4\times 5^1\times {\mathrm{4143409}}^1$

素因数の和:4143422

約数の個数: 20

約数和(自身を含む): 770674260

約数和(自身を除く): 439201540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4143409, 8286818, 16573636, 20717045, 33147272, 41434090, 66294544, 82868180, 165736360, 331472720]

約数ペア:

[(1, 331472720), (2, 165736360), (4, 82868180), (5, 66294544), (8, 41434090), (10, 33147272), (16, 20717045), (20, 16573636), (40, 8286818), (80, 4143409)]