19772640

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52803360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 180, 184, 199, 207, 216, 230, 240, 270, 276, 288, 345, 360, 368, 398, 414, 432, 460, 480, 540, 552, 597, 621, 690, 720, 736, 796, 828, 864, 920, 995, 1035, 1080, 1104, 1194, 1242, 1380, 1440, 1592, 1656, 1791, 1840, 1990, 2070, 2160, 2208, 2388, 2484, 2760, 2985, 3105, 3184, 3312, 3582, 3680, 3980, 4140, 4320, 4577, 4776, 4968, 5373, 5520, 5970, 6210, 6368, 6624, 7164, 7960, 8280, 8955, 9154, 9552, 9936, 10746, 11040, 11940, 12420, 13731, 14328, 15920, 16560, 17910, 18308, 19104, 19872, 21492, 22885, 23880, 24840, 26865, 27462, 28656, 31840, 33120, 35820, 36616, 41193, 42984, 45770, 47760, 49680, 53730, 54924, 57312, 68655, 71640, 73232, 82386, 85968, 91540, 95520, 99360, 107460, 109848, 123579, 137310, 143280, 146464, 164772, 171936, 183080, 205965, 214920, 219696, 247158, 274620, 286560, 329544, 366160, 411930, 429840, 439392, 494316, 549240, 617895, 659088, 732320, 823860, 859680, 988632, 1098480, 1235790, 1318176, 1647720, 1977264, 2196960, 2471580, 3295440, 3954528, 4943160, 6590880, 9886320, 19772640]

約数ペア:

[(1, 19772640), (2, 9886320), (3, 6590880), (4, 4943160), (5, 3954528), (6, 3295440), (8, 2471580), (9, 2196960), (10, 1977264), (12, 1647720), (15, 1318176), (16, 1235790), (18, 1098480), (20, 988632), (23, 859680), (24, 823860), (27, 732320), (30, 659088), (32, 617895), (36, 549240), (40, 494316), (45, 439392), (46, 429840), (48, 411930), (54, 366160), (60, 329544), (69, 286560), (72, 274620), (80, 247158), (90, 219696), (92, 214920), (96, 205965), (108, 183080), (115, 171936), (120, 164772), (135, 146464), (138, 143280), (144, 137310), (160, 123579), (180, 109848), (184, 107460), (199, 99360), (207, 95520), (216, 91540), (230, 85968), (240, 82386), (270, 73232), (276, 71640), (288, 68655), (345, 57312), (360, 54924), (368, 53730), (398, 49680), (414, 47760), (432, 45770), (460, 42984), (480, 41193), (540, 36616), (552, 35820), (597, 33120), (621, 31840), (690, 28656), (720, 27462), (736, 26865), (796, 24840), (828, 23880), (864, 22885), (920, 21492), (995, 19872), (1035, 19104), (1080, 18308), (1104, 17910), (1194, 16560), (1242, 15920), (1380, 14328), (1440, 13731), (1592, 12420), (1656, 11940), (1791, 11040), (1840, 10746), (1990, 9936), (2070, 9552), (2160, 9154), (2208, 8955), (2388, 8280), (2484, 7960), (2760, 7164), (2985, 6624), (3105, 6368), (3184, 6210), (3312, 5970), (3582, 5520), (3680, 5373), (3980, 4968), (4140, 4776), (4320, 4577)]