85048840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 197588160

約数和(自身を除く): 112539320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 197, 215, 251, 344, 394, 430, 502, 788, 860, 985, 1004, 1255, 1576, 1720, 1970, 2008, 2510, 3940, 5020, 7880, 8471, 10040, 10793, 16942, 21586, 33884, 42355, 43172, 49447, 53965, 67768, 84710, 86344, 98894, 107930, 169420, 197788, 215860, 247235, 338840, 395576, 431720, 494470, 988940, 1977880, 2126221, 4252442, 8504884, 10631105, 17009768, 21262210, 42524420, 85048840]

約数ペア:

[(1, 85048840), (2, 42524420), (4, 21262210), (5, 17009768), (8, 10631105), (10, 8504884), (20, 4252442), (40, 2126221), (43, 1977880), (86, 988940), (172, 494470), (197, 431720), (215, 395576), (251, 338840), (344, 247235), (394, 215860), (430, 197788), (502, 169420), (788, 107930), (860, 98894), (985, 86344), (1004, 84710), (1255, 67768), (1576, 53965), (1720, 49447), (1970, 43172), (2008, 42355), (2510, 33884), (3940, 21586), (5020, 16942), (7880, 10793), (8471, 10040)]