251144880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{149491}}^1$

素因数の和:149514

約数の個数: 80

約数和(自身を含む): 889776384

約数和(自身を除く): 638631504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 149491, 298982, 448473, 597964, 747455, 896946, 1046437, 1195928, 1494910, 1793892, 2092874, 2242365, 2391856, 2989820, 3139311, 3587784, 4185748, 4484730, 5232185, 5979640, 6278622, 7175568, 8371496, 8969460, 10464370, 11959280, 12557244, 15696555, 16742992, 17938920, 20928740, 25114488, 31393110, 35877840, 41857480, 50228976, 62786220, 83714960, 125572440, 251144880]

約数ペア:

[(1, 251144880), (2, 125572440), (3, 83714960), (4, 62786220), (5, 50228976), (6, 41857480), (7, 35877840), (8, 31393110), (10, 25114488), (12, 20928740), (14, 17938920), (15, 16742992), (16, 15696555), (20, 12557244), (21, 11959280), (24, 10464370), (28, 8969460), (30, 8371496), (35, 7175568), (40, 6278622), (42, 5979640), (48, 5232185), (56, 4484730), (60, 4185748), (70, 3587784), (80, 3139311), (84, 2989820), (105, 2391856), (112, 2242365), (120, 2092874), (140, 1793892), (168, 1494910), (210, 1195928), (240, 1046437), (280, 896946), (336, 747455), (420, 597964), (560, 448473), (840, 298982), (1680, 149491)]