256171680

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3121}}^1$

素因数の和:3164

約数の個数: 192

約数和(自身を含む): 944092800

約数和(自身を除く): 687921120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 342, 360, 380, 432, 456, 480, 513, 540, 570, 608, 684, 720, 760, 855, 864, 912, 1026, 1080, 1140, 1368, 1440, 1520, 1710, 1824, 2052, 2160, 2280, 2565, 2736, 3040, 3121, 3420, 4104, 4320, 4560, 5130, 5472, 6242, 6840, 8208, 9120, 9363, 10260, 12484, 13680, 15605, 16416, 18726, 20520, 24968, 27360, 28089, 31210, 37452, 41040, 46815, 49936, 56178, 59299, 62420, 74904, 82080, 84267, 93630, 99872, 112356, 118598, 124840, 140445, 149808, 168534, 177897, 187260, 224712, 237196, 249680, 280890, 296495, 299616, 337068, 355794, 374520, 421335, 449424, 474392, 499360, 533691, 561780, 592990, 674136, 711588, 749040, 842670, 889485, 898848, 948784, 1067382, 1123560, 1185980, 1348272, 1423176, 1498080, 1601073, 1685340, 1778970, 1897568, 2134764, 2247120, 2371960, 2668455, 2696544, 2846352, 3202146, 3370680, 3557940, 4269528, 4494240, 4743920, 5336910, 5692704, 6404292, 6741360, 7115880, 8005365, 8539056, 9487840, 10673820, 12808584, 13482720, 14231760, 16010730, 17078112, 21347640, 25617168, 28463520, 32021460, 42695280, 51234336, 64042920, 85390560, 128085840, 256171680]

約数ペア:

[(1, 256171680), (2, 128085840), (3, 85390560), (4, 64042920), (5, 51234336), (6, 42695280), (8, 32021460), (9, 28463520), (10, 25617168), (12, 21347640), (15, 17078112), (16, 16010730), (18, 14231760), (19, 13482720), (20, 12808584), (24, 10673820), (27, 9487840), (30, 8539056), (32, 8005365), (36, 7115880), (38, 6741360), (40, 6404292), (45, 5692704), (48, 5336910), (54, 4743920), (57, 4494240), (60, 4269528), (72, 3557940), (76, 3370680), (80, 3202146), (90, 2846352), (95, 2696544), (96, 2668455), (108, 2371960), (114, 2247120), (120, 2134764), (135, 1897568), (144, 1778970), (152, 1685340), (160, 1601073), (171, 1498080), (180, 1423176), (190, 1348272), (216, 1185980), (228, 1123560), (240, 1067382), (270, 948784), (285, 898848), (288, 889485), (304, 842670), (342, 749040), (360, 711588), (380, 674136), (432, 592990), (456, 561780), (480, 533691), (513, 499360), (540, 474392), (570, 449424), (608, 421335), (684, 374520), (720, 355794), (760, 337068), (855, 299616), (864, 296495), (912, 280890), (1026, 249680), (1080, 237196), (1140, 224712), (1368, 187260), (1440, 177897), (1520, 168534), (1710, 149808), (1824, 140445), (2052, 124840), (2160, 118598), (2280, 112356), (2565, 99872), (2736, 93630), (3040, 84267), (3121, 82080), (3420, 74904), (4104, 62420), (4320, 59299), (4560, 56178), (5130, 49936), (5472, 46815), (6242, 41040), (6840, 37452), (8208, 31210), (9120, 28089), (9363, 27360), (10260, 24968), (12484, 20520), (13680, 18726), (15605, 16416)]