55421000

素因数分解:

$2^3\times 5^3\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 130880880

約数和(自身を除く): 75459880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 157, 200, 250, 314, 353, 500, 628, 706, 785, 1000, 1256, 1412, 1570, 1765, 2824, 3140, 3530, 3925, 6280, 7060, 7850, 8825, 14120, 15700, 17650, 19625, 31400, 35300, 39250, 44125, 55421, 70600, 78500, 88250, 110842, 157000, 176500, 221684, 277105, 353000, 443368, 554210, 1108420, 1385525, 2216840, 2771050, 5542100, 6927625, 11084200, 13855250, 27710500, 55421000]

約数ペア:

[(1, 55421000), (2, 27710500), (4, 13855250), (5, 11084200), (8, 6927625), (10, 5542100), (20, 2771050), (25, 2216840), (40, 1385525), (50, 1108420), (100, 554210), (125, 443368), (157, 353000), (200, 277105), (250, 221684), (314, 176500), (353, 157000), (500, 110842), (628, 88250), (706, 78500), (785, 70600), (1000, 55421), (1256, 44125), (1412, 39250), (1570, 35300), (1765, 31400), (2824, 19625), (3140, 17650), (3530, 15700), (3925, 14120), (6280, 8825), (7060, 7850)]