208478720

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 160

約数和(自身を含む): 537394176

約数和(自身を除く): 328915456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 71, 74, 80, 124, 128, 142, 148, 155, 160, 185, 248, 256, 284, 296, 310, 320, 355, 370, 496, 512, 568, 592, 620, 640, 710, 740, 992, 1136, 1147, 1184, 1240, 1280, 1420, 1480, 1984, 2201, 2272, 2294, 2368, 2480, 2560, 2627, 2840, 2960, 3968, 4402, 4544, 4588, 4736, 4960, 5254, 5680, 5735, 5920, 7936, 8804, 9088, 9176, 9472, 9920, 10508, 11005, 11360, 11470, 11840, 13135, 15872, 17608, 18176, 18352, 18944, 19840, 21016, 22010, 22720, 22940, 23680, 26270, 35216, 36352, 36704, 39680, 42032, 44020, 45440, 45880, 47360, 52540, 70432, 73408, 79360, 81437, 84064, 88040, 90880, 91760, 94720, 105080, 140864, 146816, 162874, 168128, 176080, 181760, 183520, 210160, 281728, 293632, 325748, 336256, 352160, 367040, 407185, 420320, 563456, 587264, 651496, 672512, 704320, 734080, 814370, 840640, 1126912, 1302992, 1345024, 1408640, 1468160, 1628740, 1681280, 2605984, 2817280, 2936320, 3257480, 3362560, 5211968, 5634560, 6514960, 6725120, 10423936, 13029920, 20847872, 26059840, 41695744, 52119680, 104239360, 208478720]

約数ペア:

[(1, 208478720), (2, 104239360), (4, 52119680), (5, 41695744), (8, 26059840), (10, 20847872), (16, 13029920), (20, 10423936), (31, 6725120), (32, 6514960), (37, 5634560), (40, 5211968), (62, 3362560), (64, 3257480), (71, 2936320), (74, 2817280), (80, 2605984), (124, 1681280), (128, 1628740), (142, 1468160), (148, 1408640), (155, 1345024), (160, 1302992), (185, 1126912), (248, 840640), (256, 814370), (284, 734080), (296, 704320), (310, 672512), (320, 651496), (355, 587264), (370, 563456), (496, 420320), (512, 407185), (568, 367040), (592, 352160), (620, 336256), (640, 325748), (710, 293632), (740, 281728), (992, 210160), (1136, 183520), (1147, 181760), (1184, 176080), (1240, 168128), (1280, 162874), (1420, 146816), (1480, 140864), (1984, 105080), (2201, 94720), (2272, 91760), (2294, 90880), (2368, 88040), (2480, 84064), (2560, 81437), (2627, 79360), (2840, 73408), (2960, 70432), (3968, 52540), (4402, 47360), (4544, 45880), (4588, 45440), (4736, 44020), (4960, 42032), (5254, 39680), (5680, 36704), (5735, 36352), (5920, 35216), (7936, 26270), (8804, 23680), (9088, 22940), (9176, 22720), (9472, 22010), (9920, 21016), (10508, 19840), (11005, 18944), (11360, 18352), (11470, 18176), (11840, 17608), (13135, 15872)]