399850416

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 240

約数和(自身を含む): 1340771328

約数和(自身を除く): 940920912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 37, 42, 48, 56, 63, 71, 72, 74, 84, 111, 112, 126, 142, 144, 148, 151, 168, 213, 222, 252, 259, 284, 296, 302, 333, 336, 426, 444, 453, 497, 504, 518, 568, 592, 604, 639, 666, 777, 852, 888, 906, 994, 1008, 1036, 1057, 1136, 1208, 1278, 1332, 1359, 1491, 1554, 1704, 1776, 1812, 1988, 2072, 2114, 2331, 2416, 2556, 2627, 2664, 2718, 2982, 3108, 3171, 3408, 3624, 3976, 4144, 4228, 4473, 4662, 5112, 5254, 5328, 5436, 5587, 5964, 6216, 6342, 7248, 7881, 7952, 8456, 8946, 9324, 9513, 10224, 10508, 10721, 10872, 11174, 11928, 12432, 12684, 15762, 16761, 16912, 17892, 18389, 18648, 19026, 21016, 21442, 21744, 22348, 23643, 23856, 25368, 31524, 32163, 33522, 35784, 36778, 37296, 38052, 39109, 42032, 42884, 44696, 47286, 50283, 50736, 55167, 63048, 64326, 67044, 71568, 73556, 75047, 76104, 78218, 85768, 89392, 94572, 96489, 100566, 110334, 117327, 126096, 128652, 134088, 147112, 150094, 152208, 156436, 165501, 171536, 189144, 192978, 201132, 220668, 225141, 234654, 257304, 268176, 294224, 300188, 312872, 331002, 351981, 378288, 385956, 396677, 402264, 441336, 450282, 469308, 514608, 600376, 625744, 662004, 675423, 703962, 771912, 793354, 804528, 882672, 900564, 938616, 1190031, 1200752, 1324008, 1350846, 1407924, 1543824, 1586708, 1801128, 1877232, 2380062, 2648016, 2701692, 2776739, 2815848, 3173416, 3570093, 3602256, 4760124, 5403384, 5553478, 5631696, 6346832, 7140186, 8330217, 9520248, 10806768, 11106956, 14280372, 16660434, 19040496, 22213912, 24990651, 28560744, 33320868, 44427824, 49981302, 57121488, 66641736, 99962604, 133283472, 199925208, 399850416]

約数ペア:

[(1, 399850416), (2, 199925208), (3, 133283472), (4, 99962604), (6, 66641736), (7, 57121488), (8, 49981302), (9, 44427824), (12, 33320868), (14, 28560744), (16, 24990651), (18, 22213912), (21, 19040496), (24, 16660434), (28, 14280372), (36, 11106956), (37, 10806768), (42, 9520248), (48, 8330217), (56, 7140186), (63, 6346832), (71, 5631696), (72, 5553478), (74, 5403384), (84, 4760124), (111, 3602256), (112, 3570093), (126, 3173416), (142, 2815848), (144, 2776739), (148, 2701692), (151, 2648016), (168, 2380062), (213, 1877232), (222, 1801128), (252, 1586708), (259, 1543824), (284, 1407924), (296, 1350846), (302, 1324008), (333, 1200752), (336, 1190031), (426, 938616), (444, 900564), (453, 882672), (497, 804528), (504, 793354), (518, 771912), (568, 703962), (592, 675423), (604, 662004), (639, 625744), (666, 600376), (777, 514608), (852, 469308), (888, 450282), (906, 441336), (994, 402264), (1008, 396677), (1036, 385956), (1057, 378288), (1136, 351981), (1208, 331002), (1278, 312872), (1332, 300188), (1359, 294224), (1491, 268176), (1554, 257304), (1704, 234654), (1776, 225141), (1812, 220668), (1988, 201132), (2072, 192978), (2114, 189144), (2331, 171536), (2416, 165501), (2556, 156436), (2627, 152208), (2664, 150094), (2718, 147112), (2982, 134088), (3108, 128652), (3171, 126096), (3408, 117327), (3624, 110334), (3976, 100566), (4144, 96489), (4228, 94572), (4473, 89392), (4662, 85768), (5112, 78218), (5254, 76104), (5328, 75047), (5436, 73556), (5587, 71568), (5964, 67044), (6216, 64326), (6342, 63048), (7248, 55167), (7881, 50736), (7952, 50283), (8456, 47286), (8946, 44696), (9324, 42884), (9513, 42032), (10224, 39109), (10508, 38052), (10721, 37296), (10872, 36778), (11174, 35784), (11928, 33522), (12432, 32163), (12684, 31524), (15762, 25368), (16761, 23856), (16912, 23643), (17892, 22348), (18389, 21744), (18648, 21442), (19026, 21016)]