2000278840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{97861}}^1$

素因数の和:97952

約数の個数: 64

約数和(自身を含む): 5214087360

約数和(自身を除く): 3213808520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 97861, 195722, 391444, 489305, 685027, 782888, 978610, 1370054, 1957220, 2740108, 3425135, 3914440, 5480216, 6850270, 7143853, 13700540, 14287706, 27401080, 28575412, 35719265, 50006971, 57150824, 71438530, 100013942, 142877060, 200027884, 250034855, 285754120, 400055768, 500069710, 1000139420, 2000278840]

約数ペア:

[(1, 2000278840), (2, 1000139420), (4, 500069710), (5, 400055768), (7, 285754120), (8, 250034855), (10, 200027884), (14, 142877060), (20, 100013942), (28, 71438530), (35, 57150824), (40, 50006971), (56, 35719265), (70, 28575412), (73, 27401080), (140, 14287706), (146, 13700540), (280, 7143853), (292, 6850270), (365, 5480216), (511, 3914440), (584, 3425135), (730, 2740108), (1022, 1957220), (1460, 1370054), (2044, 978610), (2555, 782888), (2920, 685027), (4088, 489305), (5110, 391444), (10220, 195722), (20440, 97861)]