39954920

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1583}}^1$

素因数の和:2225

約数の個数: 32

約数和(自身を含む): 90097920

約数和(自身を除く): 50143000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 1583, 2524, 3155, 3166, 5048, 6310, 6332, 7915, 12620, 12664, 15830, 25240, 31660, 63320, 998873, 1997746, 3995492, 4994365, 7990984, 9988730, 19977460, 39954920]

約数ペア:

[(1, 39954920), (2, 19977460), (4, 9988730), (5, 7990984), (8, 4994365), (10, 3995492), (20, 1997746), (40, 998873), (631, 63320), (1262, 31660), (1583, 25240), (2524, 15830), (3155, 12664), (3166, 12620), (5048, 7915), (6310, 6332)]