200905000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{1747}}^1$

素因数の和:1796

約数の個数: 80

約数和(自身を含む): 491467680

約数和(自身を除く): 290562680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 625, 920, 1000, 1150, 1250, 1747, 2300, 2500, 2875, 3494, 4600, 5000, 5750, 6988, 8735, 11500, 13976, 14375, 17470, 23000, 28750, 34940, 40181, 43675, 57500, 69880, 80362, 87350, 115000, 160724, 174700, 200905, 218375, 321448, 349400, 401810, 436750, 803620, 873500, 1004525, 1091875, 1607240, 1747000, 2009050, 2183750, 4018100, 4367500, 5022625, 8036200, 8735000, 10045250, 20090500, 25113125, 40181000, 50226250, 100452500, 200905000]

約数ペア:

[(1, 200905000), (2, 100452500), (4, 50226250), (5, 40181000), (8, 25113125), (10, 20090500), (20, 10045250), (23, 8735000), (25, 8036200), (40, 5022625), (46, 4367500), (50, 4018100), (92, 2183750), (100, 2009050), (115, 1747000), (125, 1607240), (184, 1091875), (200, 1004525), (230, 873500), (250, 803620), (460, 436750), (500, 401810), (575, 349400), (625, 321448), (920, 218375), (1000, 200905), (1150, 174700), (1250, 160724), (1747, 115000), (2300, 87350), (2500, 80362), (2875, 69880), (3494, 57500), (4600, 43675), (5000, 40181), (5750, 34940), (6988, 28750), (8735, 23000), (11500, 17470), (13976, 14375)]