191854360

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 440082720

約数和(自身を除く): 248228360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 197, 251, 388, 394, 485, 502, 776, 788, 970, 985, 1004, 1255, 1576, 1940, 1970, 2008, 2510, 3880, 3940, 5020, 7880, 10040, 19109, 24347, 38218, 48694, 49447, 76436, 95545, 97388, 98894, 121735, 152872, 191090, 194776, 197788, 243470, 247235, 382180, 395576, 486940, 494470, 764360, 973880, 988940, 1977880, 4796359, 9592718, 19185436, 23981795, 38370872, 47963590, 95927180, 191854360]

約数ペア:

[(1, 191854360), (2, 95927180), (4, 47963590), (5, 38370872), (8, 23981795), (10, 19185436), (20, 9592718), (40, 4796359), (97, 1977880), (194, 988940), (197, 973880), (251, 764360), (388, 494470), (394, 486940), (485, 395576), (502, 382180), (776, 247235), (788, 243470), (970, 197788), (985, 194776), (1004, 191090), (1255, 152872), (1576, 121735), (1940, 98894), (1970, 97388), (2008, 95545), (2510, 76436), (3880, 49447), (3940, 48694), (5020, 38218), (7880, 24347), (10040, 19109)]