89888920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4751}}^1$

素因数の和:4816

約数の個数: 64

約数和(自身を含む): 225815040

約数和(自身を除く): 135926120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 4751, 9460, 9502, 18920, 19004, 23755, 38008, 47510, 52261, 95020, 104522, 190040, 204293, 209044, 261305, 408586, 418088, 522610, 817172, 1021465, 1045220, 1634344, 2042930, 2090440, 2247223, 4085860, 4494446, 8171720, 8988892, 11236115, 17977784, 22472230, 44944460, 89888920]

約数ペア:

[(1, 89888920), (2, 44944460), (4, 22472230), (5, 17977784), (8, 11236115), (10, 8988892), (11, 8171720), (20, 4494446), (22, 4085860), (40, 2247223), (43, 2090440), (44, 2042930), (55, 1634344), (86, 1045220), (88, 1021465), (110, 817172), (172, 522610), (215, 418088), (220, 408586), (344, 261305), (430, 209044), (440, 204293), (473, 190040), (860, 104522), (946, 95020), (1720, 52261), (1892, 47510), (2365, 38008), (3784, 23755), (4730, 19004), (4751, 18920), (9460, 9502)]