1269565520

素因数分解:

$2^4\times 5^1\times {\mathrm{15869569}}^1$

素因数の和:15869582

約数の個数: 20

約数和(自身を含む): 2951740020

約数和(自身を除く): 1682174500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15869569, 31739138, 63478276, 79347845, 126956552, 158695690, 253913104, 317391380, 634782760, 1269565520]

約数ペア:

[(1, 1269565520), (2, 634782760), (4, 317391380), (5, 253913104), (8, 158695690), (10, 126956552), (16, 79347845), (20, 63478276), (40, 31739138), (80, 15869569)]