128777880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{181}}^1$

素因数の和:231

約数の個数: 288

約数和(自身を含む): 496707120

約数和(自身を除く): 367929240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 49, 55, 56, 60, 66, 70, 77, 84, 88, 98, 105, 110, 120, 121, 132, 140, 147, 154, 165, 168, 181, 196, 210, 220, 231, 242, 245, 264, 280, 294, 308, 330, 362, 363, 385, 392, 420, 440, 462, 484, 490, 539, 543, 588, 605, 616, 660, 724, 726, 735, 770, 840, 847, 905, 924, 968, 980, 1078, 1086, 1155, 1176, 1210, 1267, 1320, 1448, 1452, 1470, 1540, 1617, 1694, 1810, 1815, 1848, 1960, 1991, 2156, 2172, 2310, 2420, 2534, 2541, 2695, 2715, 2904, 2940, 3080, 3234, 3388, 3620, 3630, 3801, 3982, 4235, 4312, 4344, 4620, 4840, 5068, 5082, 5390, 5430, 5880, 5929, 5973, 6335, 6468, 6776, 7240, 7260, 7602, 7964, 8085, 8470, 8869, 9240, 9955, 10136, 10164, 10780, 10860, 11858, 11946, 12670, 12705, 12936, 13937, 14520, 15204, 15928, 16170, 16940, 17738, 17787, 19005, 19910, 20328, 21560, 21720, 21901, 23716, 23892, 25340, 25410, 26607, 27874, 29645, 29865, 30408, 32340, 33880, 35476, 35574, 38010, 39820, 41811, 43802, 44345, 47432, 47784, 50680, 50820, 53214, 55748, 59290, 59730, 64680, 65703, 69685, 70952, 71148, 76020, 79640, 83622, 87604, 88690, 88935, 97559, 101640, 106428, 109505, 111496, 118580, 119460, 131406, 133035, 139370, 142296, 152040, 153307, 167244, 175208, 177380, 177870, 195118, 209055, 212856, 219010, 237160, 238920, 262812, 266070, 278740, 292677, 306614, 328515, 334488, 354760, 355740, 390236, 418110, 438020, 459921, 487795, 525624, 532140, 557480, 585354, 613228, 657030, 711480, 766535, 780472, 836220, 876040, 919842, 975590, 1064280, 1073149, 1170708, 1226456, 1314060, 1463385, 1533070, 1672440, 1839684, 1951180, 2146298, 2299605, 2341416, 2628120, 2926770, 3066140, 3219447, 3679368, 3902360, 4292596, 4599210, 5365745, 5853540, 6132280, 6438894, 8585192, 9198420, 10731490, 11707080, 12877788, 16097235, 18396840, 21462980, 25755576, 32194470, 42925960, 64388940, 128777880]

約数ペア:

[(1, 128777880), (2, 64388940), (3, 42925960), (4, 32194470), (5, 25755576), (6, 21462980), (7, 18396840), (8, 16097235), (10, 12877788), (11, 11707080), (12, 10731490), (14, 9198420), (15, 8585192), (20, 6438894), (21, 6132280), (22, 5853540), (24, 5365745), (28, 4599210), (30, 4292596), (33, 3902360), (35, 3679368), (40, 3219447), (42, 3066140), (44, 2926770), (49, 2628120), (55, 2341416), (56, 2299605), (60, 2146298), (66, 1951180), (70, 1839684), (77, 1672440), (84, 1533070), (88, 1463385), (98, 1314060), (105, 1226456), (110, 1170708), (120, 1073149), (121, 1064280), (132, 975590), (140, 919842), (147, 876040), (154, 836220), (165, 780472), (168, 766535), (181, 711480), (196, 657030), (210, 613228), (220, 585354), (231, 557480), (242, 532140), (245, 525624), (264, 487795), (280, 459921), (294, 438020), (308, 418110), (330, 390236), (362, 355740), (363, 354760), (385, 334488), (392, 328515), (420, 306614), (440, 292677), (462, 278740), (484, 266070), (490, 262812), (539, 238920), (543, 237160), (588, 219010), (605, 212856), (616, 209055), (660, 195118), (724, 177870), (726, 177380), (735, 175208), (770, 167244), (840, 153307), (847, 152040), (905, 142296), (924, 139370), (968, 133035), (980, 131406), (1078, 119460), (1086, 118580), (1155, 111496), (1176, 109505), (1210, 106428), (1267, 101640), (1320, 97559), (1448, 88935), (1452, 88690), (1470, 87604), (1540, 83622), (1617, 79640), (1694, 76020), (1810, 71148), (1815, 70952), (1848, 69685), (1960, 65703), (1991, 64680), (2156, 59730), (2172, 59290), (2310, 55748), (2420, 53214), (2534, 50820), (2541, 50680), (2695, 47784), (2715, 47432), (2904, 44345), (2940, 43802), (3080, 41811), (3234, 39820), (3388, 38010), (3620, 35574), (3630, 35476), (3801, 33880), (3982, 32340), (4235, 30408), (4312, 29865), (4344, 29645), (4620, 27874), (4840, 26607), (5068, 25410), (5082, 25340), (5390, 23892), (5430, 23716), (5880, 21901), (5929, 21720), (5973, 21560), (6335, 20328), (6468, 19910), (6776, 19005), (7240, 17787), (7260, 17738), (7602, 16940), (7964, 16170), (8085, 15928), (8470, 15204), (8869, 14520), (9240, 13937), (9955, 12936), (10136, 12705), (10164, 12670), (10780, 11946), (10860, 11858)]