247920640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 679311360

約数和(自身を除く): 431390720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 71, 80, 88, 110, 124, 128, 142, 155, 160, 176, 220, 248, 256, 284, 310, 320, 341, 352, 355, 440, 496, 512, 568, 620, 640, 682, 704, 710, 781, 880, 992, 1024, 1136, 1240, 1280, 1364, 1408, 1420, 1562, 1705, 1760, 1984, 2048, 2201, 2272, 2480, 2560, 2728, 2816, 2840, 3124, 3410, 3520, 3905, 3968, 4402, 4544, 4960, 5120, 5456, 5632, 5680, 6248, 6820, 7040, 7810, 7936, 8804, 9088, 9920, 10240, 10912, 11005, 11264, 11360, 12496, 13640, 14080, 15620, 15872, 17608, 18176, 19840, 21824, 22010, 22528, 22720, 24211, 24992, 27280, 28160, 31240, 31744, 35216, 36352, 39680, 43648, 44020, 45440, 48422, 49984, 54560, 56320, 62480, 63488, 70432, 72704, 79360, 87296, 88040, 90880, 96844, 99968, 109120, 112640, 121055, 124960, 140864, 145408, 158720, 174592, 176080, 181760, 193688, 199936, 218240, 242110, 249920, 281728, 317440, 349184, 352160, 363520, 387376, 399872, 436480, 484220, 499840, 563456, 698368, 704320, 727040, 774752, 799744, 872960, 968440, 999680, 1126912, 1408640, 1549504, 1599488, 1745920, 1936880, 1999360, 2253824, 2817280, 3099008, 3491840, 3873760, 3998720, 4507648, 5634560, 6198016, 7747520, 7997440, 11269120, 12396032, 15495040, 22538240, 24792064, 30990080, 49584128, 61980160, 123960320, 247920640]

約数ペア:

[(1, 247920640), (2, 123960320), (4, 61980160), (5, 49584128), (8, 30990080), (10, 24792064), (11, 22538240), (16, 15495040), (20, 12396032), (22, 11269120), (31, 7997440), (32, 7747520), (40, 6198016), (44, 5634560), (55, 4507648), (62, 3998720), (64, 3873760), (71, 3491840), (80, 3099008), (88, 2817280), (110, 2253824), (124, 1999360), (128, 1936880), (142, 1745920), (155, 1599488), (160, 1549504), (176, 1408640), (220, 1126912), (248, 999680), (256, 968440), (284, 872960), (310, 799744), (320, 774752), (341, 727040), (352, 704320), (355, 698368), (440, 563456), (496, 499840), (512, 484220), (568, 436480), (620, 399872), (640, 387376), (682, 363520), (704, 352160), (710, 349184), (781, 317440), (880, 281728), (992, 249920), (1024, 242110), (1136, 218240), (1240, 199936), (1280, 193688), (1364, 181760), (1408, 176080), (1420, 174592), (1562, 158720), (1705, 145408), (1760, 140864), (1984, 124960), (2048, 121055), (2201, 112640), (2272, 109120), (2480, 99968), (2560, 96844), (2728, 90880), (2816, 88040), (2840, 87296), (3124, 79360), (3410, 72704), (3520, 70432), (3905, 63488), (3968, 62480), (4402, 56320), (4544, 54560), (4960, 49984), (5120, 48422), (5456, 45440), (5632, 44020), (5680, 43648), (6248, 39680), (6820, 36352), (7040, 35216), (7810, 31744), (7936, 31240), (8804, 28160), (9088, 27280), (9920, 24992), (10240, 24211), (10912, 22720), (11005, 22528), (11264, 22010), (11360, 21824), (12496, 19840), (13640, 18176), (14080, 17608), (15620, 15872)]