127920140

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{18119}}^1$

素因数の和:18481

約数の個数: 24

約数和(自身を含む): 269408160

約数和(自身を除く): 141488020

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 18119, 36238, 72476, 90595, 181190, 362380, 6396007, 12792014, 25584028, 31980035, 63960070, 127920140]

約数ペア:

[(1, 127920140), (2, 63960070), (4, 31980035), (5, 25584028), (10, 12792014), (20, 6396007), (353, 362380), (706, 181190), (1412, 90595), (1765, 72476), (3530, 36238), (7060, 18119)]