312138720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^2$

素因数の和:206

約数の個数: 216

約数和(自身を含む): 1105512408

約数和(自身を除く): 793373688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 71, 72, 80, 86, 90, 96, 120, 129, 142, 144, 160, 172, 180, 213, 215, 240, 258, 284, 288, 344, 355, 360, 387, 426, 430, 480, 516, 568, 639, 645, 688, 710, 720, 774, 852, 860, 1032, 1065, 1136, 1278, 1290, 1376, 1420, 1440, 1548, 1704, 1720, 1935, 2064, 2130, 2272, 2556, 2580, 2840, 3053, 3096, 3195, 3408, 3440, 3870, 4128, 4260, 5041, 5112, 5160, 5680, 6106, 6192, 6390, 6816, 6880, 7740, 8520, 9159, 10082, 10224, 10320, 11360, 12212, 12384, 12780, 15123, 15265, 15480, 17040, 18318, 20164, 20448, 20640, 24424, 25205, 25560, 27477, 30246, 30530, 30960, 34080, 36636, 40328, 45369, 45795, 48848, 50410, 51120, 54954, 60492, 61060, 61920, 73272, 75615, 80656, 90738, 91590, 97696, 100820, 102240, 109908, 120984, 122120, 137385, 146544, 151230, 161312, 181476, 183180, 201640, 216763, 219816, 226845, 241968, 244240, 274770, 293088, 302460, 362952, 366360, 403280, 433526, 439632, 453690, 483936, 488480, 549540, 604920, 650289, 725904, 732720, 806560, 867052, 879264, 907380, 1083815, 1099080, 1209840, 1300578, 1451808, 1465440, 1734104, 1814760, 1950867, 2167630, 2198160, 2419680, 2601156, 3251445, 3468208, 3629520, 3901734, 4335260, 4396320, 5202312, 6502890, 6936416, 7259040, 7803468, 8670520, 9754335, 10404624, 13005780, 15606936, 17341040, 19508670, 20809248, 26011560, 31213872, 34682080, 39017340, 52023120, 62427744, 78034680, 104046240, 156069360, 312138720]

約数ペア:

[(1, 312138720), (2, 156069360), (3, 104046240), (4, 78034680), (5, 62427744), (6, 52023120), (8, 39017340), (9, 34682080), (10, 31213872), (12, 26011560), (15, 20809248), (16, 19508670), (18, 17341040), (20, 15606936), (24, 13005780), (30, 10404624), (32, 9754335), (36, 8670520), (40, 7803468), (43, 7259040), (45, 6936416), (48, 6502890), (60, 5202312), (71, 4396320), (72, 4335260), (80, 3901734), (86, 3629520), (90, 3468208), (96, 3251445), (120, 2601156), (129, 2419680), (142, 2198160), (144, 2167630), (160, 1950867), (172, 1814760), (180, 1734104), (213, 1465440), (215, 1451808), (240, 1300578), (258, 1209840), (284, 1099080), (288, 1083815), (344, 907380), (355, 879264), (360, 867052), (387, 806560), (426, 732720), (430, 725904), (480, 650289), (516, 604920), (568, 549540), (639, 488480), (645, 483936), (688, 453690), (710, 439632), (720, 433526), (774, 403280), (852, 366360), (860, 362952), (1032, 302460), (1065, 293088), (1136, 274770), (1278, 244240), (1290, 241968), (1376, 226845), (1420, 219816), (1440, 216763), (1548, 201640), (1704, 183180), (1720, 181476), (1935, 161312), (2064, 151230), (2130, 146544), (2272, 137385), (2556, 122120), (2580, 120984), (2840, 109908), (3053, 102240), (3096, 100820), (3195, 97696), (3408, 91590), (3440, 90738), (3870, 80656), (4128, 75615), (4260, 73272), (5041, 61920), (5112, 61060), (5160, 60492), (5680, 54954), (6106, 51120), (6192, 50410), (6390, 48848), (6816, 45795), (6880, 45369), (7740, 40328), (8520, 36636), (9159, 34080), (10082, 30960), (10224, 30530), (10320, 30246), (11360, 27477), (12212, 25560), (12384, 25205), (12780, 24424), (15123, 20640), (15265, 20448), (15480, 20164), (17040, 18318)]