178470720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2053

約数の個数: 168

約数和(自身を含む): 633984000

約数和(自身を除く): 455513280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 192, 240, 248, 279, 288, 310, 320, 360, 372, 465, 480, 496, 558, 576, 620, 720, 744, 930, 960, 992, 1116, 1240, 1395, 1440, 1488, 1860, 1984, 1999, 2232, 2480, 2790, 2880, 2976, 3720, 3998, 4464, 4960, 5580, 5952, 5997, 7440, 7996, 8928, 9920, 9995, 11160, 11994, 14880, 15992, 17856, 17991, 19990, 22320, 23988, 29760, 29985, 31984, 35982, 39980, 44640, 47976, 59970, 61969, 63968, 71964, 79960, 89280, 89955, 95952, 119940, 123938, 127936, 143928, 159920, 179910, 185907, 191904, 239880, 247876, 287856, 309845, 319840, 359820, 371814, 383808, 479760, 495752, 557721, 575712, 619690, 639680, 719640, 743628, 929535, 959520, 991504, 1115442, 1151424, 1239380, 1439280, 1487256, 1859070, 1919040, 1983008, 2230884, 2478760, 2788605, 2878560, 2974512, 3718140, 3966016, 4461768, 4957520, 5577210, 5757120, 5949024, 7436280, 8923536, 9915040, 11154420, 11898048, 14872560, 17847072, 19830080, 22308840, 29745120, 35694144, 44617680, 59490240, 89235360, 178470720]

約数ペア:

[(1, 178470720), (2, 89235360), (3, 59490240), (4, 44617680), (5, 35694144), (6, 29745120), (8, 22308840), (9, 19830080), (10, 17847072), (12, 14872560), (15, 11898048), (16, 11154420), (18, 9915040), (20, 8923536), (24, 7436280), (30, 5949024), (31, 5757120), (32, 5577210), (36, 4957520), (40, 4461768), (45, 3966016), (48, 3718140), (60, 2974512), (62, 2878560), (64, 2788605), (72, 2478760), (80, 2230884), (90, 1983008), (93, 1919040), (96, 1859070), (120, 1487256), (124, 1439280), (144, 1239380), (155, 1151424), (160, 1115442), (180, 991504), (186, 959520), (192, 929535), (240, 743628), (248, 719640), (279, 639680), (288, 619690), (310, 575712), (320, 557721), (360, 495752), (372, 479760), (465, 383808), (480, 371814), (496, 359820), (558, 319840), (576, 309845), (620, 287856), (720, 247876), (744, 239880), (930, 191904), (960, 185907), (992, 179910), (1116, 159920), (1240, 143928), (1395, 127936), (1440, 123938), (1488, 119940), (1860, 95952), (1984, 89955), (1999, 89280), (2232, 79960), (2480, 71964), (2790, 63968), (2880, 61969), (2976, 59970), (3720, 47976), (3998, 44640), (4464, 39980), (4960, 35982), (5580, 31984), (5952, 29985), (5997, 29760), (7440, 23988), (7996, 22320), (8928, 19990), (9920, 17991), (9995, 17856), (11160, 15992), (11994, 14880)]