39839720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7603}}^1$

素因数の和:7745

約数の個数: 32

約数和(自身を含む): 90335520

約数和(自身を除く): 50495800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 7603, 15206, 30412, 38015, 60824, 76030, 152060, 304120, 995993, 1991986, 3983972, 4979965, 7967944, 9959930, 19919860, 39839720]

約数ペア:

[(1, 39839720), (2, 19919860), (4, 9959930), (5, 7967944), (8, 4979965), (10, 3983972), (20, 1991986), (40, 995993), (131, 304120), (262, 152060), (524, 76030), (655, 60824), (1048, 38015), (1310, 30412), (2620, 15206), (5240, 7603)]