644644

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 72

約数和(自身を含む): 1608768

約数和(自身を除く): 964124

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 23, 26, 28, 44, 46, 49, 52, 77, 91, 92, 98, 143, 154, 161, 182, 196, 253, 286, 299, 308, 322, 364, 506, 539, 572, 598, 637, 644, 1001, 1012, 1078, 1127, 1196, 1274, 1771, 2002, 2093, 2156, 2254, 2548, 3289, 3542, 4004, 4186, 4508, 6578, 7007, 7084, 8372, 12397, 13156, 14014, 14651, 23023, 24794, 28028, 29302, 46046, 49588, 58604, 92092, 161161, 322322, 644644]

約数ペア:

[(1, 644644), (2, 322322), (4, 161161), (7, 92092), (11, 58604), (13, 49588), (14, 46046), (22, 29302), (23, 28028), (26, 24794), (28, 23023), (44, 14651), (46, 14014), (49, 13156), (52, 12397), (77, 8372), (91, 7084), (92, 7007), (98, 6578), (143, 4508), (154, 4186), (161, 4004), (182, 3542), (196, 3289), (253, 2548), (286, 2254), (299, 2156), (308, 2093), (322, 2002), (364, 1771), (506, 1274), (539, 1196), (572, 1127), (598, 1078), (637, 1012), (644, 1001)]