257375520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 288

約数和(自身を含む): 967075200

約数和(自身を除く): 709699680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 23, 24, 30, 32, 36, 38, 40, 45, 46, 48, 57, 60, 69, 72, 76, 80, 90, 92, 95, 96, 114, 115, 120, 138, 144, 152, 160, 171, 180, 184, 190, 207, 228, 230, 240, 276, 285, 288, 304, 342, 345, 360, 368, 380, 409, 414, 437, 456, 460, 480, 552, 570, 608, 684, 690, 720, 736, 760, 818, 828, 855, 874, 912, 920, 1035, 1104, 1140, 1227, 1311, 1368, 1380, 1440, 1520, 1636, 1656, 1710, 1748, 1824, 1840, 2045, 2070, 2185, 2208, 2280, 2454, 2622, 2736, 2760, 3040, 3272, 3312, 3420, 3496, 3680, 3681, 3933, 4090, 4140, 4370, 4560, 4908, 5244, 5472, 5520, 6135, 6544, 6555, 6624, 6840, 6992, 7362, 7771, 7866, 8180, 8280, 8740, 9120, 9407, 9816, 10488, 11040, 12270, 13088, 13110, 13680, 13984, 14724, 15542, 15732, 16360, 16560, 17480, 18405, 18814, 19632, 19665, 20976, 23313, 24540, 26220, 27360, 28221, 29448, 31084, 31464, 32720, 33120, 34960, 36810, 37628, 38855, 39264, 39330, 41952, 46626, 47035, 49080, 52440, 56442, 58896, 62168, 62928, 65440, 69920, 69939, 73620, 75256, 77710, 78660, 84663, 93252, 94070, 98160, 104880, 112884, 116565, 117792, 124336, 125856, 139878, 141105, 147240, 150512, 155420, 157320, 169326, 178733, 186504, 188140, 196320, 209760, 225768, 233130, 248672, 279756, 282210, 294480, 301024, 310840, 314640, 338652, 349695, 357466, 373008, 376280, 423315, 451536, 466260, 536199, 559512, 564420, 588960, 621680, 629280, 677304, 699390, 714932, 746016, 752560, 846630, 893665, 903072, 932520, 1072398, 1119024, 1128840, 1243360, 1354608, 1398780, 1429864, 1505120, 1608597, 1693260, 1787330, 1865040, 2144796, 2238048, 2257680, 2680995, 2709216, 2797560, 2859728, 3217194, 3386520, 3574660, 3730080, 4289592, 4515360, 5361990, 5595120, 5719456, 6434388, 6773040, 7149320, 8042985, 8579184, 10723980, 11190240, 12868776, 13546080, 14298640, 16085970, 17158368, 21447960, 25737552, 28597280, 32171940, 42895920, 51475104, 64343880, 85791840, 128687760, 257375520]

約数ペア:

[(1, 257375520), (2, 128687760), (3, 85791840), (4, 64343880), (5, 51475104), (6, 42895920), (8, 32171940), (9, 28597280), (10, 25737552), (12, 21447960), (15, 17158368), (16, 16085970), (18, 14298640), (19, 13546080), (20, 12868776), (23, 11190240), (24, 10723980), (30, 8579184), (32, 8042985), (36, 7149320), (38, 6773040), (40, 6434388), (45, 5719456), (46, 5595120), (48, 5361990), (57, 4515360), (60, 4289592), (69, 3730080), (72, 3574660), (76, 3386520), (80, 3217194), (90, 2859728), (92, 2797560), (95, 2709216), (96, 2680995), (114, 2257680), (115, 2238048), (120, 2144796), (138, 1865040), (144, 1787330), (152, 1693260), (160, 1608597), (171, 1505120), (180, 1429864), (184, 1398780), (190, 1354608), (207, 1243360), (228, 1128840), (230, 1119024), (240, 1072398), (276, 932520), (285, 903072), (288, 893665), (304, 846630), (342, 752560), (345, 746016), (360, 714932), (368, 699390), (380, 677304), (409, 629280), (414, 621680), (437, 588960), (456, 564420), (460, 559512), (480, 536199), (552, 466260), (570, 451536), (608, 423315), (684, 376280), (690, 373008), (720, 357466), (736, 349695), (760, 338652), (818, 314640), (828, 310840), (855, 301024), (874, 294480), (912, 282210), (920, 279756), (1035, 248672), (1104, 233130), (1140, 225768), (1227, 209760), (1311, 196320), (1368, 188140), (1380, 186504), (1440, 178733), (1520, 169326), (1636, 157320), (1656, 155420), (1710, 150512), (1748, 147240), (1824, 141105), (1840, 139878), (2045, 125856), (2070, 124336), (2185, 117792), (2208, 116565), (2280, 112884), (2454, 104880), (2622, 98160), (2736, 94070), (2760, 93252), (3040, 84663), (3272, 78660), (3312, 77710), (3420, 75256), (3496, 73620), (3680, 69939), (3681, 69920), (3933, 65440), (4090, 62928), (4140, 62168), (4370, 58896), (4560, 56442), (4908, 52440), (5244, 49080), (5472, 47035), (5520, 46626), (6135, 41952), (6544, 39330), (6555, 39264), (6624, 38855), (6840, 37628), (6992, 36810), (7362, 34960), (7771, 33120), (7866, 32720), (8180, 31464), (8280, 31084), (8740, 29448), (9120, 28221), (9407, 27360), (9816, 26220), (10488, 24540), (11040, 23313), (12270, 20976), (13088, 19665), (13110, 19632), (13680, 18814), (13984, 18405), (14724, 17480), (15542, 16560), (15732, 16360)]