28052800

素因数分解:

$2^6\times 5^2\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 84

約数和(自身を含む): 70157340

約数和(自身を除く): 42104540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 160, 178, 197, 200, 320, 356, 394, 400, 445, 712, 788, 800, 890, 985, 1424, 1576, 1600, 1780, 1970, 2225, 2848, 3152, 3560, 3940, 4450, 4925, 5696, 6304, 7120, 7880, 8900, 9850, 12608, 14240, 15760, 17533, 17800, 19700, 28480, 31520, 35066, 35600, 39400, 63040, 70132, 71200, 78800, 87665, 140264, 142400, 157600, 175330, 280528, 315200, 350660, 438325, 561056, 701320, 876650, 1122112, 1402640, 1753300, 2805280, 3506600, 5610560, 7013200, 14026400, 28052800]

約数ペア:

[(1, 28052800), (2, 14026400), (4, 7013200), (5, 5610560), (8, 3506600), (10, 2805280), (16, 1753300), (20, 1402640), (25, 1122112), (32, 876650), (40, 701320), (50, 561056), (64, 438325), (80, 350660), (89, 315200), (100, 280528), (160, 175330), (178, 157600), (197, 142400), (200, 140264), (320, 87665), (356, 78800), (394, 71200), (400, 70132), (445, 63040), (712, 39400), (788, 35600), (800, 35066), (890, 31520), (985, 28480), (1424, 19700), (1576, 17800), (1600, 17533), (1780, 15760), (1970, 14240), (2225, 12608), (2848, 9850), (3152, 8900), (3560, 7880), (3940, 7120), (4450, 6304), (4925, 5696)]