2006201855

素因数分解:

$5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 2895052800

約数和(自身を除く): 888850945

約数列:

[1, 5, 7, 35, 49, 61, 127, 151, 245, 305, 343, 427, 635, 755, 889, 1057, 1715, 2135, 2989, 4445, 5285, 6223, 7399, 7747, 9211, 14945, 19177, 20923, 31115, 36995, 38735, 43561, 46055, 51793, 54229, 64477, 95885, 104615, 134239, 217805, 258965, 271145, 322385, 379603, 451339, 671195, 939673, 1169797, 1898015, 2256695, 2657221, 3159373, 4698365, 5848985, 6577711, 8188579, 13286105, 15796865, 32888555, 40942895, 57320053, 286600265, 401240371, 2006201855]

約数ペア:

[(1, 2006201855), (5, 401240371), (7, 286600265), (35, 57320053), (49, 40942895), (61, 32888555), (127, 15796865), (151, 13286105), (245, 8188579), (305, 6577711), (343, 5848985), (427, 4698365), (635, 3159373), (755, 2657221), (889, 2256695), (1057, 1898015), (1715, 1169797), (2135, 939673), (2989, 671195), (4445, 451339), (5285, 379603), (6223, 322385), (7399, 271145), (7747, 258965), (9211, 217805), (14945, 134239), (19177, 104615), (20923, 95885), (31115, 64477), (36995, 54229), (38735, 51793), (43561, 46055)]