1333367920

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 3142656000

約数和(自身を除く): 1809288080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 263, 499, 508, 526, 635, 998, 1016, 1052, 1270, 1315, 1996, 2032, 2104, 2495, 2540, 2630, 3992, 4208, 4990, 5080, 5260, 7984, 9980, 10160, 10520, 19960, 21040, 33401, 39920, 63373, 66802, 126746, 131237, 133604, 167005, 253492, 262474, 267208, 316865, 334010, 506984, 524948, 534416, 633730, 656185, 668020, 1013968, 1049896, 1267460, 1312370, 1336040, 2099792, 2534920, 2624740, 2672080, 5069840, 5249480, 10498960, 16667099, 33334198, 66668396, 83335495, 133336792, 166670990, 266673584, 333341980, 666683960, 1333367920]

約数ペア:

[(1, 1333367920), (2, 666683960), (4, 333341980), (5, 266673584), (8, 166670990), (10, 133336792), (16, 83335495), (20, 66668396), (40, 33334198), (80, 16667099), (127, 10498960), (254, 5249480), (263, 5069840), (499, 2672080), (508, 2624740), (526, 2534920), (635, 2099792), (998, 1336040), (1016, 1312370), (1052, 1267460), (1270, 1049896), (1315, 1013968), (1996, 668020), (2032, 656185), (2104, 633730), (2495, 534416), (2540, 524948), (2630, 506984), (3992, 334010), (4208, 316865), (4990, 267208), (5080, 262474), (5260, 253492), (7984, 167005), (9980, 133604), (10160, 131237), (10520, 126746), (19960, 66802), (21040, 63373), (33401, 39920)]