12781756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 26883360

約数和(自身を除く): 14101604

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 221, 247, 323, 442, 494, 646, 761, 884, 988, 1292, 1522, 3044, 4199, 8398, 9893, 12937, 14459, 16796, 19786, 25874, 28918, 39572, 51748, 57836, 168181, 187967, 245803, 336362, 375934, 491606, 672724, 751868, 983212, 3195439, 6390878, 12781756]

約数ペア:

[(1, 12781756), (2, 6390878), (4, 3195439), (13, 983212), (17, 751868), (19, 672724), (26, 491606), (34, 375934), (38, 336362), (52, 245803), (68, 187967), (76, 168181), (221, 57836), (247, 51748), (323, 39572), (442, 28918), (494, 25874), (646, 19786), (761, 16796), (884, 14459), (988, 12937), (1292, 9893), (1522, 8398), (3044, 4199)]