80409712

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{82387}}^1$

素因数の和:82456

約数の個数: 20

約数和(自身を含む): 158349736

約数和(自身を除く): 77940024

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 82387, 164774, 329548, 659096, 1318192, 5025607, 10051214, 20102428, 40204856, 80409712]

約数ペア:

[(1, 80409712), (2, 40204856), (4, 20102428), (8, 10051214), (16, 5025607), (61, 1318192), (122, 659096), (244, 329548), (488, 164774), (976, 82387)]