20796030136

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1\times {\mathrm{5003}}^1$

素因数の和:5588

約数の個数: 64

約数和(自身を含む): 44915904000

約数和(自身を除く): 24119873864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 373, 398, 746, 796, 1393, 1492, 1592, 2611, 2786, 2984, 5003, 5222, 5572, 10006, 10444, 11144, 20012, 20888, 35021, 40024, 70042, 74227, 140084, 148454, 280168, 296908, 519589, 593816, 995597, 1039178, 1866119, 1991194, 2078356, 3732238, 3982388, 4156712, 6969179, 7464476, 7964776, 13062833, 13938358, 14928952, 26125666, 27876716, 52251332, 55753432, 104502664, 371357681, 742715362, 1485430724, 2599503767, 2970861448, 5199007534, 10398015068, 20796030136]

約数ペア:

[(1, 20796030136), (2, 10398015068), (4, 5199007534), (7, 2970861448), (8, 2599503767), (14, 1485430724), (28, 742715362), (56, 371357681), (199, 104502664), (373, 55753432), (398, 52251332), (746, 27876716), (796, 26125666), (1393, 14928952), (1492, 13938358), (1592, 13062833), (2611, 7964776), (2786, 7464476), (2984, 6969179), (5003, 4156712), (5222, 3982388), (5572, 3732238), (10006, 2078356), (10444, 1991194), (11144, 1866119), (20012, 1039178), (20888, 995597), (35021, 593816), (40024, 519589), (70042, 296908), (74227, 280168), (140084, 148454)]