280175680

素因数分解:

$2^6\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1249}}^1$

素因数の和:1967

約数の個数: 56

約数和(自身を含む): 668655000

約数和(自身を除く): 388479320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 701, 1249, 1402, 2498, 2804, 3505, 4996, 5608, 6245, 7010, 9992, 11216, 12490, 14020, 19984, 22432, 24980, 28040, 39968, 44864, 49960, 56080, 79936, 99920, 112160, 199840, 224320, 399680, 875549, 1751098, 3502196, 4377745, 7004392, 8755490, 14008784, 17510980, 28017568, 35021960, 56035136, 70043920, 140087840, 280175680]

約数ペア:

[(1, 280175680), (2, 140087840), (4, 70043920), (5, 56035136), (8, 35021960), (10, 28017568), (16, 17510980), (20, 14008784), (32, 8755490), (40, 7004392), (64, 4377745), (80, 3502196), (160, 1751098), (320, 875549), (701, 399680), (1249, 224320), (1402, 199840), (2498, 112160), (2804, 99920), (3505, 79936), (4996, 56080), (5608, 49960), (6245, 44864), (7010, 39968), (9992, 28040), (11216, 24980), (12490, 22432), (14020, 19984)]