18496520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9437}}^1$

素因数の和:9462

約数の個数: 48

約数和(自身を含む): 48416940

約数和(自身を除く): 29920420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9437, 18874, 37748, 47185, 66059, 75496, 94370, 132118, 188740, 264236, 330295, 377480, 462413, 528472, 660590, 924826, 1321180, 1849652, 2312065, 2642360, 3699304, 4624130, 9248260, 18496520]

約数ペア:

[(1, 18496520), (2, 9248260), (4, 4624130), (5, 3699304), (7, 2642360), (8, 2312065), (10, 1849652), (14, 1321180), (20, 924826), (28, 660590), (35, 528472), (40, 462413), (49, 377480), (56, 330295), (70, 264236), (98, 188740), (140, 132118), (196, 94370), (245, 75496), (280, 66059), (392, 47185), (490, 37748), (980, 18874), (1960, 9437)]