40021720

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{2161}}^1$

素因数の和:2635

約数の個数: 32

約数和(自身を含む): 90285120

約数和(自身を除く): 50263400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1852, 2161, 2315, 3704, 4322, 4630, 8644, 9260, 10805, 17288, 18520, 21610, 43220, 86440, 1000543, 2001086, 4002172, 5002715, 8004344, 10005430, 20010860, 40021720]

約数ペア:

[(1, 40021720), (2, 20010860), (4, 10005430), (5, 8004344), (8, 5002715), (10, 4002172), (20, 2001086), (40, 1000543), (463, 86440), (926, 43220), (1852, 21610), (2161, 18520), (2315, 17288), (3704, 10805), (4322, 9260), (4630, 8644)]