20736750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 53044992

約数和(自身を除く): 32308242

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 125, 129, 150, 215, 250, 258, 375, 430, 643, 645, 750, 1075, 1286, 1290, 1929, 2150, 3215, 3225, 3858, 5375, 6430, 6450, 9645, 10750, 16075, 16125, 19290, 27649, 32150, 32250, 48225, 55298, 80375, 82947, 96450, 138245, 160750, 165894, 241125, 276490, 414735, 482250, 691225, 829470, 1382450, 2073675, 3456125, 4147350, 6912250, 10368375, 20736750]

約数ペア:

[(1, 20736750), (2, 10368375), (3, 6912250), (5, 4147350), (6, 3456125), (10, 2073675), (15, 1382450), (25, 829470), (30, 691225), (43, 482250), (50, 414735), (75, 276490), (86, 241125), (125, 165894), (129, 160750), (150, 138245), (215, 96450), (250, 82947), (258, 80375), (375, 55298), (430, 48225), (643, 32250), (645, 32150), (750, 27649), (1075, 19290), (1286, 16125), (1290, 16075), (1929, 10750), (2150, 9645), (3215, 6450), (3225, 6430), (3858, 5375)]