19811020320

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 1152

約数和(自身を含む): 89599910400

約数和(自身を除く): 69788890080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21, 24, 26, 28, 30, 32, 35, 36, 38, 39, 40, 42, 45, 48, 52, 56, 57, 60, 63, 65, 70, 72, 73, 76, 78, 80, 84, 90, 91, 95, 96, 104, 105, 109, 112, 114, 117, 120, 126, 130, 133, 140, 144, 146, 152, 156, 160, 168, 171, 180, 182, 190, 195, 208, 210, 218, 219, 224, 228, 234, 240, 247, 252, 260, 266, 273, 280, 285, 288, 292, 304, 312, 315, 327, 336, 342, 360, 364, 365, 380, 390, 399, 416, 420, 436, 438, 455, 456, 468, 480, 494, 504, 511, 520, 532, 545, 546, 560, 570, 584, 585, 608, 624, 630, 654, 657, 665, 672, 684, 720, 728, 730, 741, 760, 763, 780, 798, 819, 840, 855, 872, 876, 910, 912, 936, 949, 981, 988, 1008, 1022, 1040, 1064, 1090, 1092, 1095, 1120, 1140, 1168, 1170, 1197, 1235, 1248, 1260, 1308, 1314, 1330, 1365, 1368, 1387, 1417, 1440, 1456, 1460, 1482, 1520, 1526, 1533, 1560, 1596, 1635, 1638, 1680, 1710, 1729, 1744, 1752, 1820, 1824, 1872, 1898, 1962, 1976, 1995, 2016, 2044, 2071, 2080, 2128, 2180, 2184, 2190, 2223, 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94338192, 95245290, 101594976, 104268528, 108851760, 110061224, 115853920, 117922740, 123818877, 126993720, 130335660, 135691920, 137576530, 141507288, 148955040, 152392464, 157230320, 165091836, 169324960, 173780880, 176884110, 181752480, 188676384, 190490580, 206364795, 208537056, 217703520, 220122448, 235845480, 247637754, 253987440, 260671320, 271383840, 275153060, 283014576, 304784928, 314460640, 330183672, 347561760, 353768220, 380981160, 412729590, 440244896, 471690960, 495275508, 507974880, 521342640, 550306120, 566029152, 619094385, 660367344, 707536440, 761962320, 825459180, 943381920, 990551016, 1042685280, 1100612240, 1238188770, 1320734688, 1415072880, 1523924640, 1650918360, 1981102032, 2201224480, 2476377540, 2830145760, 3301836720, 3962204064, 4952755080, 6603673440, 9905510160, 19811020320]

約数ペア:

[(1, 19811020320), (2, 9905510160), (3, 6603673440), (4, 4952755080), (5, 3962204064), (6, 3301836720), (7, 2830145760), (8, 2476377540), (9, 2201224480), (10, 1981102032), (12, 1650918360), (13, 1523924640), (14, 1415072880), (15, 1320734688), (16, 1238188770), (18, 1100612240), (19, 1042685280), (20, 990551016), (21, 943381920), (24, 825459180), (26, 761962320), (28, 707536440), (30, 660367344), (32, 619094385), (35, 566029152), (36, 550306120), (38, 521342640), (39, 507974880), (40, 495275508), (42, 471690960), (45, 440244896), (48, 412729590), (52, 380981160), (56, 353768220), (57, 347561760), (60, 330183672), (63, 314460640), (65, 304784928), (70, 283014576), (72, 275153060), (73, 271383840), (76, 260671320), (78, 253987440), (80, 247637754), (84, 235845480), (90, 220122448), (91, 217703520), (95, 208537056), (96, 206364795), (104, 190490580), (105, 188676384), (109, 181752480), (112, 176884110), (114, 173780880), (117, 169324960), (120, 165091836), (126, 157230320), (130, 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