856856

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 2177280

約数和(自身を除く): 1320424

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 107, 143, 154, 182, 214, 286, 308, 364, 428, 572, 616, 728, 749, 856, 1001, 1144, 1177, 1391, 1498, 2002, 2354, 2782, 2996, 4004, 4708, 5564, 5992, 8008, 8239, 9416, 9737, 11128, 15301, 16478, 19474, 30602, 32956, 38948, 61204, 65912, 77896, 107107, 122408, 214214, 428428, 856856]

約数ペア:

[(1, 856856), (2, 428428), (4, 214214), (7, 122408), (8, 107107), (11, 77896), (13, 65912), (14, 61204), (22, 38948), (26, 32956), (28, 30602), (44, 19474), (52, 16478), (56, 15301), (77, 11128), (88, 9737), (91, 9416), (104, 8239), (107, 8008), (143, 5992), (154, 5564), (182, 4708), (214, 4004), (286, 2996), (308, 2782), (364, 2354), (428, 2002), (572, 1498), (616, 1391), (728, 1177), (749, 1144), (856, 1001)]