639779868

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1273

約数の個数: 216

約数和(自身を含む): 2115798048

約数和(自身を除く): 1476018180

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 23, 26, 28, 36, 39, 42, 46, 49, 52, 63, 69, 78, 84, 91, 92, 98, 117, 126, 138, 147, 156, 161, 182, 196, 207, 234, 252, 273, 276, 294, 299, 322, 364, 414, 441, 468, 483, 546, 588, 598, 637, 644, 819, 828, 882, 897, 966, 1092, 1127, 1196, 1213, 1274, 1449, 1638, 1764, 1794, 1911, 1932, 2093, 2254, 2426, 2548, 2691, 2898, 3276, 3381, 3588, 3639, 3822, 4186, 4508, 4852, 5382, 5733, 5796, 6279, 6762, 7278, 7644, 8372, 8491, 10143, 10764, 10917, 11466, 12558, 13524, 14556, 14651, 15769, 16982, 18837, 20286, 21834, 22932, 25116, 25473, 27899, 29302, 31538, 33964, 37674, 40572, 43668, 43953, 47307, 50946, 55798, 58604, 59437, 63076, 75348, 76419, 83697, 87906, 94614, 101892, 110383, 111596, 118874, 131859, 141921, 152838, 167394, 175812, 178311, 189228, 195293, 220766, 237748, 251091, 263718, 283842, 305676, 331149, 334788, 356622, 362687, 390586, 441532, 502182, 527436, 534933, 567684, 585879, 662298, 713244, 725374, 772681, 781172, 993447, 1004364, 1069866, 1088061, 1171758, 1324596, 1367051, 1450748, 1545362, 1757637, 1986894, 2139732, 2176122, 2318043, 2343516, 2538809, 2734102, 3090724, 3264183, 3515274, 3973788, 4101153, 4352244, 4636086, 5077618, 5468204, 6528366, 6954129, 7030548, 7616427, 8202306, 9272172, 10155236, 12303459, 13056732, 13908258, 15232854, 16404612, 17771663, 22849281, 24606918, 27816516, 30465708, 35543326, 45698562, 49213836, 53314989, 71086652, 91397124, 106629978, 159944967, 213259956, 319889934, 639779868]

約数ペア:

[(1, 639779868), (2, 319889934), (3, 213259956), (4, 159944967), (6, 106629978), (7, 91397124), (9, 71086652), (12, 53314989), (13, 49213836), (14, 45698562), (18, 35543326), (21, 30465708), (23, 27816516), (26, 24606918), (28, 22849281), (36, 17771663), (39, 16404612), (42, 15232854), (46, 13908258), (49, 13056732), (52, 12303459), (63, 10155236), (69, 9272172), (78, 8202306), (84, 7616427), (91, 7030548), (92, 6954129), (98, 6528366), (117, 5468204), (126, 5077618), (138, 4636086), (147, 4352244), (156, 4101153), (161, 3973788), (182, 3515274), (196, 3264183), (207, 3090724), (234, 2734102), (252, 2538809), (273, 2343516), (276, 2318043), (294, 2176122), (299, 2139732), (322, 1986894), (364, 1757637), (414, 1545362), (441, 1450748), (468, 1367051), (483, 1324596), (546, 1171758), (588, 1088061), (598, 1069866), (637, 1004364), (644, 993447), (819, 781172), (828, 772681), (882, 725374), (897, 713244), (966, 662298), (1092, 585879), (1127, 567684), (1196, 534933), (1213, 527436), (1274, 502182), (1449, 441532), (1638, 390586), (1764, 362687), (1794, 356622), (1911, 334788), (1932, 331149), (2093, 305676), (2254, 283842), (2426, 263718), (2548, 251091), (2691, 237748), (2898, 220766), (3276, 195293), (3381, 189228), (3588, 178311), (3639, 175812), (3822, 167394), (4186, 152838), (4508, 141921), (4852, 131859), (5382, 118874), (5733, 111596), (5796, 110383), (6279, 101892), (6762, 94614), (7278, 87906), (7644, 83697), (8372, 76419), (8491, 75348), (10143, 63076), (10764, 59437), (10917, 58604), (11466, 55798), (12558, 50946), (13524, 47307), (14556, 43953), (14651, 43668), (15769, 40572), (16982, 37674), (18837, 33964), (20286, 31538), (21834, 29302), (22932, 27899), (25116, 25473)]