81530960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:181

約数の個数: 160

約数和(自身を含む): 229485312

約数和(自身を除く): 147954352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 53, 56, 67, 70, 80, 82, 106, 112, 134, 140, 164, 205, 212, 265, 268, 280, 287, 328, 335, 371, 410, 424, 469, 530, 536, 560, 574, 656, 670, 742, 820, 848, 938, 1060, 1072, 1148, 1340, 1435, 1484, 1640, 1855, 1876, 2120, 2173, 2296, 2345, 2680, 2747, 2870, 2968, 3280, 3551, 3710, 3752, 4240, 4346, 4592, 4690, 5360, 5494, 5740, 5936, 7102, 7420, 7504, 8692, 9380, 10865, 10988, 11480, 13735, 14204, 14840, 15211, 17384, 17755, 18760, 19229, 21730, 21976, 22960, 24857, 27470, 28408, 29680, 30422, 34768, 35510, 37520, 38458, 43460, 43952, 49714, 54940, 56816, 60844, 71020, 76055, 76916, 86920, 96145, 99428, 109880, 121688, 124285, 142040, 145591, 152110, 153832, 173840, 192290, 198856, 219760, 243376, 248570, 284080, 291182, 304220, 307664, 384580, 397712, 497140, 582364, 608440, 727955, 769160, 994280, 1019137, 1164728, 1216880, 1455910, 1538320, 1988560, 2038274, 2329456, 2911820, 4076548, 5095685, 5823640, 8153096, 10191370, 11647280, 16306192, 20382740, 40765480, 81530960]

約数ペア:

[(1, 81530960), (2, 40765480), (4, 20382740), (5, 16306192), (7, 11647280), (8, 10191370), (10, 8153096), (14, 5823640), (16, 5095685), (20, 4076548), (28, 2911820), (35, 2329456), (40, 2038274), (41, 1988560), (53, 1538320), (56, 1455910), (67, 1216880), (70, 1164728), (80, 1019137), (82, 994280), (106, 769160), (112, 727955), (134, 608440), (140, 582364), (164, 497140), (205, 397712), (212, 384580), (265, 307664), (268, 304220), (280, 291182), (287, 284080), (328, 248570), (335, 243376), (371, 219760), (410, 198856), (424, 192290), (469, 173840), (530, 153832), (536, 152110), (560, 145591), (574, 142040), (656, 124285), (670, 121688), (742, 109880), (820, 99428), (848, 96145), (938, 86920), (1060, 76916), (1072, 76055), (1148, 71020), (1340, 60844), (1435, 56816), (1484, 54940), (1640, 49714), (1855, 43952), (1876, 43460), (2120, 38458), (2173, 37520), (2296, 35510), (2345, 34768), (2680, 30422), (2747, 29680), (2870, 28408), (2968, 27470), (3280, 24857), (3551, 22960), (3710, 21976), (3752, 21730), (4240, 19229), (4346, 18760), (4592, 17755), (4690, 17384), (5360, 15211), (5494, 14840), (5740, 14204), (5936, 13735), (7102, 11480), (7420, 10988), (7504, 10865), (8692, 9380)]