2561436

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 6830880

約数和(自身を除く): 4269444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 641, 666, 999, 1282, 1332, 1923, 1998, 2564, 3846, 3996, 5769, 7692, 11538, 17307, 23076, 23717, 34614, 47434, 69228, 71151, 94868, 142302, 213453, 284604, 426906, 640359, 853812, 1280718, 2561436]

約数ペア:

[(1, 2561436), (2, 1280718), (3, 853812), (4, 640359), (6, 426906), (9, 284604), (12, 213453), (18, 142302), (27, 94868), (36, 71151), (37, 69228), (54, 47434), (74, 34614), (108, 23717), (111, 23076), (148, 17307), (222, 11538), (333, 7692), (444, 5769), (641, 3996), (666, 3846), (999, 2564), (1282, 1998), (1332, 1923)]