19872728

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3109}}^1$

素因数の和:3179

約数の個数: 32

約数和(自身を含む): 40305600

約数和(自身を除く): 20432872

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3109, 3196, 6218, 6392, 12436, 24872, 52853, 105706, 146123, 211412, 292246, 422824, 584492, 1168984, 2484091, 4968182, 9936364, 19872728]

約数ペア:

[(1, 19872728), (2, 9936364), (4, 4968182), (8, 2484091), (17, 1168984), (34, 584492), (47, 422824), (68, 292246), (94, 211412), (136, 146123), (188, 105706), (376, 52853), (799, 24872), (1598, 12436), (3109, 6392), (3196, 6218)]