399416640

素因数分解:

$2^6\times 3^1\times 5^1\times 7^3\times {\mathrm{1213}}^1$

素因数の和:1254

約数の個数: 224

約数和(自身を含む): 1480108800

約数和(自身を除く): 1080692160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 343, 392, 420, 448, 480, 490, 560, 588, 672, 686, 735, 784, 840, 960, 980, 1029, 1120, 1176, 1213, 1344, 1372, 1470, 1568, 1680, 1715, 1960, 2058, 2240, 2352, 2426, 2744, 2940, 3136, 3360, 3430, 3639, 3920, 4116, 4704, 4852, 5145, 5488, 5880, 6065, 6720, 6860, 7278, 7840, 8232, 8491, 9408, 9704, 10290, 10976, 11760, 12130, 13720, 14556, 15680, 16464, 16982, 18195, 19408, 20580, 21952, 23520, 24260, 25473, 27440, 29112, 32928, 33964, 36390, 38816, 41160, 42455, 47040, 48520, 50946, 54880, 58224, 59437, 65856, 67928, 72780, 77632, 82320, 84910, 97040, 101892, 109760, 116448, 118874, 127365, 135856, 145560, 164640, 169820, 178311, 194080, 203784, 232896, 237748, 254730, 271712, 291120, 297185, 329280, 339640, 356622, 388160, 407568, 416059, 475496, 509460, 543424, 582240, 594370, 679280, 713244, 815136, 832118, 891555, 950992, 1018920, 1164480, 1188740, 1248177, 1358560, 1426488, 1630272, 1664236, 1783110, 1901984, 2037840, 2080295, 2377480, 2496354, 2717120, 2852976, 3328472, 3566220, 3803968, 4075680, 4160590, 4754960, 4992708, 5705952, 6240885, 6656944, 7132440, 8151360, 8321180, 9509920, 9985416, 11411904, 12481770, 13313888, 14264880, 16642360, 19019840, 19970832, 24963540, 26627776, 28529760, 33284720, 39941664, 49927080, 57059520, 66569440, 79883328, 99854160, 133138880, 199708320, 399416640]

約数ペア:

[(1, 399416640), (2, 199708320), (3, 133138880), (4, 99854160), (5, 79883328), (6, 66569440), (7, 57059520), (8, 49927080), (10, 39941664), (12, 33284720), (14, 28529760), (15, 26627776), (16, 24963540), (20, 19970832), (21, 19019840), (24, 16642360), (28, 14264880), (30, 13313888), (32, 12481770), (35, 11411904), (40, 9985416), (42, 9509920), (48, 8321180), (49, 8151360), (56, 7132440), (60, 6656944), (64, 6240885), (70, 5705952), (80, 4992708), (84, 4754960), (96, 4160590), (98, 4075680), (105, 3803968), (112, 3566220), (120, 3328472), (140, 2852976), (147, 2717120), (160, 2496354), (168, 2377480), (192, 2080295), (196, 2037840), (210, 1901984), (224, 1783110), (240, 1664236), (245, 1630272), (280, 1426488), (294, 1358560), (320, 1248177), (336, 1188740), (343, 1164480), (392, 1018920), (420, 950992), (448, 891555), (480, 832118), (490, 815136), (560, 713244), (588, 679280), (672, 594370), (686, 582240), (735, 543424), (784, 509460), (840, 475496), (960, 416059), (980, 407568), (1029, 388160), (1120, 356622), (1176, 339640), (1213, 329280), (1344, 297185), (1372, 291120), (1470, 271712), (1568, 254730), (1680, 237748), (1715, 232896), (1960, 203784), (2058, 194080), (2240, 178311), (2352, 169820), (2426, 164640), (2744, 145560), (2940, 135856), (3136, 127365), (3360, 118874), (3430, 116448), (3639, 109760), (3920, 101892), (4116, 97040), (4704, 84910), (4852, 82320), (5145, 77632), (5488, 72780), (5880, 67928), (6065, 65856), (6720, 59437), (6860, 58224), (7278, 54880), (7840, 50946), (8232, 48520), (8491, 47040), (9408, 42455), (9704, 41160), (10290, 38816), (10976, 36390), (11760, 33964), (12130, 32928), (13720, 29112), (14556, 27440), (15680, 25473), (16464, 24260), (16982, 23520), (18195, 21952), (19408, 20580)]