20669000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1879}}^1$

素因数の和:1911

約数の個数: 64

約数和(自身を含む): 52790400

約数和(自身を除く): 32121400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 1879, 2200, 2750, 3758, 5500, 7516, 9395, 11000, 15032, 18790, 20669, 37580, 41338, 46975, 75160, 82676, 93950, 103345, 165352, 187900, 206690, 234875, 375800, 413380, 469750, 516725, 826760, 939500, 1033450, 1879000, 2066900, 2583625, 4133800, 5167250, 10334500, 20669000]

約数ペア:

[(1, 20669000), (2, 10334500), (4, 5167250), (5, 4133800), (8, 2583625), (10, 2066900), (11, 1879000), (20, 1033450), (22, 939500), (25, 826760), (40, 516725), (44, 469750), (50, 413380), (55, 375800), (88, 234875), (100, 206690), (110, 187900), (125, 165352), (200, 103345), (220, 93950), (250, 82676), (275, 75160), (440, 46975), (500, 41338), (550, 37580), (1000, 20669), (1100, 18790), (1375, 15032), (1879, 11000), (2200, 9395), (2750, 7516), (3758, 5500)]