678621440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 288

約数和(自身を含む): 2013258240

約数和(自身を除く): 1334636800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 37, 40, 46, 56, 64, 70, 74, 80, 89, 92, 112, 115, 128, 140, 148, 160, 161, 178, 184, 185, 224, 230, 256, 259, 280, 296, 320, 322, 356, 368, 370, 445, 448, 460, 518, 560, 592, 623, 640, 644, 712, 736, 740, 805, 851, 890, 896, 920, 1036, 1120, 1184, 1246, 1280, 1288, 1295, 1424, 1472, 1480, 1610, 1702, 1780, 1792, 1840, 2047, 2072, 2240, 2368, 2492, 2576, 2590, 2848, 2944, 2960, 3115, 3220, 3293, 3404, 3560, 3680, 4094, 4144, 4255, 4480, 4736, 4984, 5152, 5180, 5696, 5888, 5920, 5957, 6230, 6440, 6586, 6808, 7120, 7360, 8188, 8288, 8510, 8960, 9472, 9968, 10235, 10304, 10360, 11392, 11840, 11914, 12460, 12880, 13172, 13616, 14240, 14329, 14720, 16376, 16465, 16576, 17020, 19936, 20470, 20608, 20720, 22784, 23051, 23680, 23828, 24920, 25760, 26344, 27232, 28480, 28658, 29440, 29785, 32752, 32930, 33152, 34040, 39872, 40940, 41216, 41440, 46102, 47360, 47656, 49840, 51520, 52688, 54464, 56960, 57316, 59570, 65504, 65860, 66304, 68080, 71645, 75739, 79744, 81880, 82880, 92204, 95312, 99680, 103040, 105376, 108928, 113920, 114632, 115255, 119140, 131008, 131720, 136160, 143290, 151478, 159488, 163760, 165760, 184408, 190624, 199360, 206080, 210752, 217856, 229264, 230510, 238280, 262016, 263440, 272320, 286580, 302956, 327520, 331520, 368816, 378695, 381248, 398720, 421504, 458528, 461020, 476560, 524032, 526880, 530173, 544640, 573160, 605912, 655040, 737632, 757390, 762496, 797440, 843008, 917056, 922040, 953120, 1053760, 1060346, 1089280, 1146320, 1211824, 1310080, 1475264, 1514780, 1524992, 1834112, 1844080, 1906240, 2107520, 2120692, 2292640, 2423648, 2620160, 2650865, 2950528, 3029560, 3668224, 3688160, 3812480, 4215040, 4241384, 4585280, 4847296, 5301730, 5901056, 6059120, 7376320, 7624960, 8482768, 9170560, 9694592, 10603460, 12118240, 14752640, 16965536, 18341120, 19389184, 21206920, 24236480, 29505280, 33931072, 42413840, 48472960, 67862144, 84827680, 96945920, 135724288, 169655360, 339310720, 678621440]

約数ペア:

[(1, 678621440), (2, 339310720), (4, 169655360), (5, 135724288), (7, 96945920), (8, 84827680), (10, 67862144), (14, 48472960), (16, 42413840), (20, 33931072), (23, 29505280), (28, 24236480), (32, 21206920), (35, 19389184), (37, 18341120), (40, 16965536), (46, 14752640), (56, 12118240), (64, 10603460), (70, 9694592), (74, 9170560), (80, 8482768), (89, 7624960), (92, 7376320), (112, 6059120), (115, 5901056), (128, 5301730), (140, 4847296), (148, 4585280), (160, 4241384), (161, 4215040), (178, 3812480), (184, 3688160), (185, 3668224), (224, 3029560), (230, 2950528), (256, 2650865), (259, 2620160), (280, 2423648), (296, 2292640), (320, 2120692), (322, 2107520), (356, 1906240), (368, 1844080), (370, 1834112), (445, 1524992), (448, 1514780), (460, 1475264), (518, 1310080), (560, 1211824), (592, 1146320), (623, 1089280), (640, 1060346), (644, 1053760), (712, 953120), (736, 922040), (740, 917056), (805, 843008), (851, 797440), (890, 762496), (896, 757390), (920, 737632), (1036, 655040), (1120, 605912), (1184, 573160), (1246, 544640), (1280, 530173), (1288, 526880), (1295, 524032), (1424, 476560), (1472, 461020), (1480, 458528), (1610, 421504), (1702, 398720), (1780, 381248), (1792, 378695), (1840, 368816), (2047, 331520), (2072, 327520), (2240, 302956), (2368, 286580), (2492, 272320), (2576, 263440), (2590, 262016), (2848, 238280), (2944, 230510), (2960, 229264), (3115, 217856), (3220, 210752), (3293, 206080), (3404, 199360), (3560, 190624), (3680, 184408), (4094, 165760), (4144, 163760), (4255, 159488), (4480, 151478), (4736, 143290), (4984, 136160), (5152, 131720), (5180, 131008), (5696, 119140), (5888, 115255), (5920, 114632), (5957, 113920), (6230, 108928), (6440, 105376), (6586, 103040), (6808, 99680), (7120, 95312), (7360, 92204), (8188, 82880), (8288, 81880), (8510, 79744), (8960, 75739), (9472, 71645), (9968, 68080), (10235, 66304), (10304, 65860), (10360, 65504), (11392, 59570), (11840, 57316), (11914, 56960), (12460, 54464), (12880, 52688), (13172, 51520), (13616, 49840), (14240, 47656), (14329, 47360), (14720, 46102), (16376, 41440), (16465, 41216), (16576, 40940), (17020, 39872), (19936, 34040), (20470, 33152), (20608, 32930), (20720, 32752), (22784, 29785), (23051, 29440), (23680, 28658), (23828, 28480), (24920, 27232), (25760, 26344)]