289975720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 732499200

約数和(自身を除く): 442523480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 53, 76, 92, 95, 106, 115, 152, 184, 190, 212, 230, 265, 313, 380, 424, 437, 460, 530, 626, 760, 874, 920, 1007, 1060, 1219, 1252, 1565, 1748, 2014, 2120, 2185, 2438, 2504, 3130, 3496, 4028, 4370, 4876, 5035, 5947, 6095, 6260, 7199, 8056, 8740, 9752, 10070, 11894, 12190, 12520, 14398, 16589, 17480, 20140, 23161, 23788, 24380, 28796, 29735, 33178, 35995, 40280, 46322, 47576, 48760, 57592, 59470, 66356, 71990, 82945, 92644, 115805, 118940, 132712, 136781, 143980, 165890, 185288, 231610, 237880, 273562, 287960, 315191, 331780, 381547, 463220, 547124, 630382, 663560, 683905, 763094, 926440, 1094248, 1260764, 1367810, 1526188, 1575955, 1907735, 2521528, 2735620, 3052376, 3151910, 3815470, 5471240, 6303820, 7249393, 7630940, 12607640, 14498786, 15261880, 28997572, 36246965, 57995144, 72493930, 144987860, 289975720]

約数ペア:

[(1, 289975720), (2, 144987860), (4, 72493930), (5, 57995144), (8, 36246965), (10, 28997572), (19, 15261880), (20, 14498786), (23, 12607640), (38, 7630940), (40, 7249393), (46, 6303820), (53, 5471240), (76, 3815470), (92, 3151910), (95, 3052376), (106, 2735620), (115, 2521528), (152, 1907735), (184, 1575955), (190, 1526188), (212, 1367810), (230, 1260764), (265, 1094248), (313, 926440), (380, 763094), (424, 683905), (437, 663560), (460, 630382), (530, 547124), (626, 463220), (760, 381547), (874, 331780), (920, 315191), (1007, 287960), (1060, 273562), (1219, 237880), (1252, 231610), (1565, 185288), (1748, 165890), (2014, 143980), (2120, 136781), (2185, 132712), (2438, 118940), (2504, 115805), (3130, 92644), (3496, 82945), (4028, 71990), (4370, 66356), (4876, 59470), (5035, 57592), (5947, 48760), (6095, 47576), (6260, 46322), (7199, 40280), (8056, 35995), (8740, 33178), (9752, 29735), (10070, 28796), (11894, 24380), (12190, 23788), (12520, 23161), (14398, 20140), (16589, 17480)]