18885500

素因数分解:

$2^2\times 5^3\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 41749344

約数和(自身を除く): 22863844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 125, 214, 250, 353, 428, 500, 535, 706, 1070, 1412, 1765, 2140, 2675, 3530, 5350, 7060, 8825, 10700, 13375, 17650, 26750, 35300, 37771, 44125, 53500, 75542, 88250, 151084, 176500, 188855, 377710, 755420, 944275, 1888550, 3777100, 4721375, 9442750, 18885500]

約数ペア:

[(1, 18885500), (2, 9442750), (4, 4721375), (5, 3777100), (10, 1888550), (20, 944275), (25, 755420), (50, 377710), (100, 188855), (107, 176500), (125, 151084), (214, 88250), (250, 75542), (353, 53500), (428, 44125), (500, 37771), (535, 35300), (706, 26750), (1070, 17650), (1412, 13375), (1765, 10700), (2140, 8825), (2675, 7060), (3530, 5350)]