12780572

素因数分解:

$2^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:546

約数の個数: 36

約数和(自身を含む): 26228664

約数和(自身を除く): 13448092

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 197, 331, 394, 662, 788, 1324, 1379, 2317, 2758, 4634, 5516, 9268, 9653, 16219, 19306, 32438, 38612, 64876, 65207, 130414, 260828, 456449, 912898, 1825796, 3195143, 6390286, 12780572]

約数ペア:

[(1, 12780572), (2, 6390286), (4, 3195143), (7, 1825796), (14, 912898), (28, 456449), (49, 260828), (98, 130414), (196, 65207), (197, 64876), (331, 38612), (394, 32438), (662, 19306), (788, 16219), (1324, 9653), (1379, 9268), (2317, 5516), (2758, 4634)]