256975992

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 216

約数和(自身を含む): 878707440

約数和(自身を除く): 621731448

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 49, 52, 56, 63, 72, 78, 84, 91, 98, 104, 117, 126, 147, 156, 168, 169, 182, 196, 234, 252, 273, 294, 312, 338, 364, 392, 431, 441, 468, 504, 507, 546, 588, 637, 676, 728, 819, 862, 882, 936, 1014, 1092, 1176, 1183, 1274, 1293, 1352, 1521, 1638, 1724, 1764, 1911, 2028, 2184, 2366, 2548, 2586, 3017, 3042, 3276, 3448, 3528, 3549, 3822, 3879, 4056, 4732, 5096, 5172, 5603, 5733, 6034, 6084, 6552, 7098, 7644, 7758, 8281, 9051, 9464, 10344, 10647, 11206, 11466, 12068, 12168, 14196, 15288, 15516, 16562, 16809, 18102, 21119, 21294, 22412, 22932, 24136, 24843, 27153, 28392, 31032, 33124, 33618, 36204, 39221, 42238, 42588, 44824, 45864, 49686, 50427, 54306, 63357, 66248, 67236, 72408, 72839, 74529, 78442, 84476, 85176, 99372, 100854, 108612, 117663, 126714, 134472, 145678, 149058, 156884, 168952, 190071, 198744, 201708, 217224, 218517, 235326, 253428, 274547, 291356, 298116, 313768, 352989, 380142, 403416, 437034, 470652, 506856, 509873, 549094, 582712, 596232, 655551, 705978, 760284, 823641, 874068, 941304, 1019746, 1098188, 1311102, 1411956, 1520568, 1529619, 1647282, 1748136, 2039492, 2196376, 2470923, 2622204, 2823912, 3059238, 3294564, 3569111, 4078984, 4588857, 4941846, 5244408, 6118476, 6589128, 7138222, 9177714, 9883692, 10707333, 12236952, 14276444, 18355428, 19767384, 21414666, 28552888, 32121999, 36710856, 42829332, 64243998, 85658664, 128487996, 256975992]

約数ペア:

[(1, 256975992), (2, 128487996), (3, 85658664), (4, 64243998), (6, 42829332), (7, 36710856), (8, 32121999), (9, 28552888), (12, 21414666), (13, 19767384), (14, 18355428), (18, 14276444), (21, 12236952), (24, 10707333), (26, 9883692), (28, 9177714), (36, 7138222), (39, 6589128), (42, 6118476), (49, 5244408), (52, 4941846), (56, 4588857), (63, 4078984), (72, 3569111), (78, 3294564), (84, 3059238), (91, 2823912), (98, 2622204), (104, 2470923), (117, 2196376), (126, 2039492), (147, 1748136), (156, 1647282), (168, 1529619), (169, 1520568), (182, 1411956), (196, 1311102), (234, 1098188), (252, 1019746), (273, 941304), (294, 874068), (312, 823641), (338, 760284), (364, 705978), (392, 655551), (431, 596232), (441, 582712), (468, 549094), (504, 509873), (507, 506856), (546, 470652), (588, 437034), (637, 403416), (676, 380142), (728, 352989), (819, 313768), (862, 298116), (882, 291356), (936, 274547), (1014, 253428), (1092, 235326), (1176, 218517), (1183, 217224), (1274, 201708), (1293, 198744), (1352, 190071), (1521, 168952), (1638, 156884), (1724, 149058), (1764, 145678), (1911, 134472), (2028, 126714), (2184, 117663), (2366, 108612), (2548, 100854), (2586, 99372), (3017, 85176), (3042, 84476), (3276, 78442), (3448, 74529), (3528, 72839), (3549, 72408), (3822, 67236), (3879, 66248), (4056, 63357), (4732, 54306), (5096, 50427), (5172, 49686), (5603, 45864), (5733, 44824), (6034, 42588), (6084, 42238), (6552, 39221), (7098, 36204), (7644, 33618), (7758, 33124), (8281, 31032), (9051, 28392), (9464, 27153), (10344, 24843), (10647, 24136), (11206, 22932), (11466, 22412), (12068, 21294), (12168, 21119), (14196, 18102), (15288, 16809), (15516, 16562)]