20591133440

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{2207}}^1$

素因数の和:2462

約数の個数: 144

約数和(自身を含む): 50935433472

約数和(自身を除く): 30344300032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 197, 256, 296, 320, 370, 394, 592, 640, 740, 788, 985, 1184, 1280, 1480, 1576, 1970, 2207, 2368, 2960, 3152, 3940, 4414, 4736, 5920, 6304, 7289, 7880, 8828, 9472, 11035, 11840, 12608, 14578, 15760, 17656, 22070, 23680, 25216, 29156, 31520, 35312, 36445, 44140, 47360, 50432, 58312, 63040, 70624, 72890, 81659, 88280, 116624, 126080, 141248, 145780, 163318, 176560, 233248, 252160, 282496, 291560, 326636, 353120, 408295, 434779, 466496, 564992, 583120, 653272, 706240, 816590, 869558, 932992, 1166240, 1306544, 1412480, 1633180, 1739116, 1865984, 2173895, 2332480, 2613088, 2824960, 3266360, 3478232, 4347790, 4664960, 5226176, 6532720, 6956464, 8695580, 9329920, 10452352, 13065440, 13912928, 16086823, 17391160, 20904704, 26130880, 27825856, 32173646, 34782320, 52261760, 55651712, 64347292, 69564640, 80434115, 104523520, 111303424, 128694584, 139129280, 160868230, 257389168, 278258560, 321736460, 514778336, 556517120, 643472920, 1029556672, 1286945840, 2059113344, 2573891680, 4118226688, 5147783360, 10295566720, 20591133440]

約数ペア:

[(1, 20591133440), (2, 10295566720), (4, 5147783360), (5, 4118226688), (8, 2573891680), (10, 2059113344), (16, 1286945840), (20, 1029556672), (32, 643472920), (37, 556517120), (40, 514778336), (64, 321736460), (74, 278258560), (80, 257389168), (128, 160868230), (148, 139129280), (160, 128694584), (185, 111303424), (197, 104523520), (256, 80434115), (296, 69564640), (320, 64347292), (370, 55651712), (394, 52261760), (592, 34782320), (640, 32173646), (740, 27825856), (788, 26130880), (985, 20904704), (1184, 17391160), (1280, 16086823), (1480, 13912928), (1576, 13065440), (1970, 10452352), (2207, 9329920), (2368, 8695580), (2960, 6956464), (3152, 6532720), (3940, 5226176), (4414, 4664960), (4736, 4347790), (5920, 3478232), (6304, 3266360), (7289, 2824960), (7880, 2613088), (8828, 2332480), (9472, 2173895), (11035, 1865984), (11840, 1739116), (12608, 1633180), (14578, 1412480), (15760, 1306544), (17656, 1166240), (22070, 932992), (23680, 869558), (25216, 816590), (29156, 706240), (31520, 653272), (35312, 583120), (36445, 564992), (44140, 466496), (47360, 434779), (50432, 408295), (58312, 353120), (63040, 326636), (70624, 291560), (72890, 282496), (81659, 252160), (88280, 233248), (116624, 176560), (126080, 163318), (141248, 145780)]