39457720

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4957}}^1$

素因数の和:5167

約数の個数: 32

約数和(自身を含む): 89244000

約数和(自身を除く): 49786280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 4957, 7960, 9914, 19828, 24785, 39656, 49570, 99140, 198280, 986443, 1972886, 3945772, 4932215, 7891544, 9864430, 19728860, 39457720]

約数ペア:

[(1, 39457720), (2, 19728860), (4, 9864430), (5, 7891544), (8, 4932215), (10, 3945772), (20, 1972886), (40, 986443), (199, 198280), (398, 99140), (796, 49570), (995, 39656), (1592, 24785), (1990, 19828), (3980, 9914), (4957, 7960)]