89680280

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4493}}^1$

素因数の和:5003

約数の個数: 32

約数和(自身を含む): 202230000

約数和(自身を除く): 112549720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4493, 4990, 8986, 9980, 17972, 19960, 22465, 35944, 44930, 89860, 179720, 2242007, 4484014, 8968028, 11210035, 17936056, 22420070, 44840140, 89680280]

約数ペア:

[(1, 89680280), (2, 44840140), (4, 22420070), (5, 17936056), (8, 11210035), (10, 8968028), (20, 4484014), (40, 2242007), (499, 179720), (998, 89860), (1996, 44930), (2495, 35944), (3992, 22465), (4493, 19960), (4990, 17972), (8986, 9980)]