56443880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 131604480

約数和(自身を除く): 75160600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 271, 328, 410, 508, 542, 635, 820, 1016, 1084, 1270, 1355, 1640, 2168, 2540, 2710, 5080, 5207, 5420, 10414, 10840, 11111, 20828, 22222, 26035, 34417, 41656, 44444, 52070, 55555, 68834, 88888, 104140, 111110, 137668, 172085, 208280, 222220, 275336, 344170, 444440, 688340, 1376680, 1411097, 2822194, 5644388, 7055485, 11288776, 14110970, 28221940, 56443880]

約数ペア:

[(1, 56443880), (2, 28221940), (4, 14110970), (5, 11288776), (8, 7055485), (10, 5644388), (20, 2822194), (40, 1411097), (41, 1376680), (82, 688340), (127, 444440), (164, 344170), (205, 275336), (254, 222220), (271, 208280), (328, 172085), (410, 137668), (508, 111110), (542, 104140), (635, 88888), (820, 68834), (1016, 55555), (1084, 52070), (1270, 44444), (1355, 41656), (1640, 34417), (2168, 26035), (2540, 22222), (2710, 20828), (5080, 11111), (5207, 10840), (5420, 10414)]