780899886

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:631

約数の個数: 128

約数和(自身を含む): 1986969600

約数和(自身を除く): 1206069714

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 127, 171, 234, 247, 254, 342, 351, 381, 461, 494, 513, 702, 741, 762, 922, 1026, 1143, 1383, 1482, 1651, 2223, 2286, 2413, 2766, 3302, 3429, 4149, 4446, 4826, 4953, 5993, 6669, 6858, 7239, 8298, 8759, 9906, 11986, 12447, 13338, 14478, 14859, 17518, 17979, 21717, 24894, 26277, 29718, 31369, 35958, 43434, 44577, 52554, 53937, 58547, 62738, 65151, 78831, 89154, 94107, 107874, 113867, 117094, 130302, 157662, 161811, 175641, 188214, 227734, 236493, 282321, 323622, 341601, 351282, 472986, 526923, 564642, 683202, 761111, 846963, 1024803, 1053846, 1112393, 1522222, 1580769, 1693926, 2049606, 2224786, 2283333, 3074409, 3161538, 3337179, 4566666, 6148818, 6674358, 6849999, 10011537, 13699998, 14461109, 20023074, 20549997, 28922218, 30034611, 41099994, 43383327, 60069222, 86766654, 130149981, 260299962, 390449943, 780899886]

約数ペア:

[(1, 780899886), (2, 390449943), (3, 260299962), (6, 130149981), (9, 86766654), (13, 60069222), (18, 43383327), (19, 41099994), (26, 30034611), (27, 28922218), (38, 20549997), (39, 20023074), (54, 14461109), (57, 13699998), (78, 10011537), (114, 6849999), (117, 6674358), (127, 6148818), (171, 4566666), (234, 3337179), (247, 3161538), (254, 3074409), (342, 2283333), (351, 2224786), (381, 2049606), (461, 1693926), (494, 1580769), (513, 1522222), (702, 1112393), (741, 1053846), (762, 1024803), (922, 846963), (1026, 761111), (1143, 683202), (1383, 564642), (1482, 526923), (1651, 472986), (2223, 351282), (2286, 341601), (2413, 323622), (2766, 282321), (3302, 236493), (3429, 227734), (4149, 188214), (4446, 175641), (4826, 161811), (4953, 157662), (5993, 130302), (6669, 117094), (6858, 113867), (7239, 107874), (8298, 94107), (8759, 89154), (9906, 78831), (11986, 65151), (12447, 62738), (13338, 58547), (14478, 53937), (14859, 52554), (17518, 44577), (17979, 43434), (21717, 35958), (24894, 31369), (26277, 29718)]