12740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1$

素因数の和:36

約数の個数: 36

約数和(自身を含む): 33516

約数和(自身を除く): 20776

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740]

約数ペア:

[(1, 12740), (2, 6370), (4, 3185), (5, 2548), (7, 1820), (10, 1274), (13, 980), (14, 910), (20, 637), (26, 490), (28, 455), (35, 364), (49, 260), (52, 245), (65, 196), (70, 182), (91, 140), (98, 130)]