838502920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{1097}}^1$

素因数の和:1402

約数の個数: 64

約数和(自身を含む): 1917503280

約数和(自身を除く): 1079000360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 197, 388, 394, 485, 776, 788, 970, 985, 1097, 1576, 1940, 1970, 2194, 3880, 3940, 4388, 5485, 7880, 8776, 10970, 19109, 21940, 38218, 43880, 76436, 95545, 106409, 152872, 191090, 212818, 216109, 382180, 425636, 432218, 532045, 764360, 851272, 864436, 1064090, 1080545, 1728872, 2128180, 2161090, 4256360, 4322180, 8644360, 20962573, 41925146, 83850292, 104812865, 167700584, 209625730, 419251460, 838502920]

約数ペア:

[(1, 838502920), (2, 419251460), (4, 209625730), (5, 167700584), (8, 104812865), (10, 83850292), (20, 41925146), (40, 20962573), (97, 8644360), (194, 4322180), (197, 4256360), (388, 2161090), (394, 2128180), (485, 1728872), (776, 1080545), (788, 1064090), (970, 864436), (985, 851272), (1097, 764360), (1576, 532045), (1940, 432218), (1970, 425636), (2194, 382180), (3880, 216109), (3940, 212818), (4388, 191090), (5485, 152872), (7880, 106409), (8776, 95545), (10970, 76436), (19109, 43880), (21940, 38218)]