251217120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{971}}^1$

素因数の和:1014

約数の個数: 288

約数和(自身を含む): 1005250176

約数和(自身を除く): 754033056

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 49, 55, 56, 60, 66, 70, 77, 80, 84, 88, 96, 98, 105, 110, 112, 120, 132, 140, 147, 154, 160, 165, 168, 176, 196, 210, 220, 224, 231, 240, 245, 264, 280, 294, 308, 330, 336, 352, 385, 392, 420, 440, 462, 480, 490, 528, 539, 560, 588, 616, 660, 672, 735, 770, 784, 840, 880, 924, 971, 980, 1056, 1078, 1120, 1155, 1176, 1232, 1320, 1470, 1540, 1568, 1617, 1680, 1760, 1848, 1942, 1960, 2156, 2310, 2352, 2464, 2640, 2695, 2913, 2940, 3080, 3234, 3360, 3696, 3884, 3920, 4312, 4620, 4704, 4855, 5280, 5390, 5826, 5880, 6160, 6468, 6797, 7392, 7768, 7840, 8085, 8624, 9240, 9710, 10681, 10780, 11652, 11760, 12320, 12936, 13594, 14565, 15536, 16170, 17248, 18480, 19420, 20391, 21362, 21560, 23304, 23520, 25872, 27188, 29130, 31072, 32043, 32340, 33985, 36960, 38840, 40782, 42724, 43120, 46608, 47579, 51744, 53405, 54376, 58260, 64086, 64680, 67970, 74767, 77680, 81564, 85448, 86240, 93216, 95158, 101955, 106810, 108752, 116520, 128172, 129360, 135940, 142737, 149534, 155360, 160215, 163128, 170896, 190316, 203910, 213620, 217504, 224301, 233040, 237895, 256344, 258720, 271880, 285474, 299068, 320430, 326256, 341792, 373835, 380632, 407820, 427240, 448602, 466080, 475790, 512688, 523369, 543760, 570948, 598136, 640860, 652512, 713685, 747670, 761264, 815640, 854480, 897204, 951580, 1025376, 1046738, 1087520, 1121505, 1141896, 1196272, 1281720, 1427370, 1495340, 1522528, 1570107, 1631280, 1708960, 1794408, 1903160, 2093476, 2243010, 2283792, 2392544, 2563440, 2616845, 2854740, 2990680, 3140214, 3262560, 3588816, 3806320, 4186952, 4486020, 4567584, 5126880, 5233690, 5709480, 5981360, 6280428, 7177632, 7612640, 7850535, 8373904, 8972040, 10467380, 11418960, 11962720, 12560856, 15701070, 16747808, 17944080, 20934760, 22837920, 25121712, 31402140, 35888160, 41869520, 50243424, 62804280, 83739040, 125608560, 251217120]

約数ペア:

[(1, 251217120), (2, 125608560), (3, 83739040), (4, 62804280), (5, 50243424), (6, 41869520), (7, 35888160), (8, 31402140), (10, 25121712), (11, 22837920), (12, 20934760), (14, 17944080), (15, 16747808), (16, 15701070), (20, 12560856), (21, 11962720), (22, 11418960), (24, 10467380), (28, 8972040), (30, 8373904), (32, 7850535), (33, 7612640), (35, 7177632), (40, 6280428), (42, 5981360), (44, 5709480), (48, 5233690), (49, 5126880), (55, 4567584), (56, 4486020), (60, 4186952), (66, 3806320), (70, 3588816), (77, 3262560), (80, 3140214), (84, 2990680), (88, 2854740), (96, 2616845), (98, 2563440), (105, 2392544), (110, 2283792), (112, 2243010), (120, 2093476), (132, 1903160), (140, 1794408), (147, 1708960), (154, 1631280), (160, 1570107), (165, 1522528), (168, 1495340), (176, 1427370), (196, 1281720), (210, 1196272), (220, 1141896), (224, 1121505), (231, 1087520), (240, 1046738), (245, 1025376), (264, 951580), (280, 897204), (294, 854480), (308, 815640), (330, 761264), (336, 747670), (352, 713685), (385, 652512), (392, 640860), (420, 598136), (440, 570948), (462, 543760), (480, 523369), (490, 512688), (528, 475790), (539, 466080), (560, 448602), (588, 427240), (616, 407820), (660, 380632), (672, 373835), (735, 341792), (770, 326256), (784, 320430), (840, 299068), (880, 285474), (924, 271880), (971, 258720), (980, 256344), (1056, 237895), (1078, 233040), (1120, 224301), (1155, 217504), (1176, 213620), (1232, 203910), (1320, 190316), (1470, 170896), (1540, 163128), (1568, 160215), (1617, 155360), (1680, 149534), (1760, 142737), (1848, 135940), (1942, 129360), (1960, 128172), (2156, 116520), (2310, 108752), (2352, 106810), (2464, 101955), (2640, 95158), (2695, 93216), (2913, 86240), (2940, 85448), (3080, 81564), (3234, 77680), (3360, 74767), (3696, 67970), (3884, 64680), (3920, 64086), (4312, 58260), (4620, 54376), (4704, 53405), (4855, 51744), (5280, 47579), (5390, 46608), (5826, 43120), (5880, 42724), (6160, 40782), (6468, 38840), (6797, 36960), (7392, 33985), (7768, 32340), (7840, 32043), (8085, 31072), (8624, 29130), (9240, 27188), (9710, 25872), (10681, 23520), (10780, 23304), (11652, 21560), (11760, 21362), (12320, 20391), (12936, 19420), (13594, 18480), (14565, 17248), (15536, 16170)]