8407960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 20956320

約数和(自身を除く): 12548360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 197, 220, 388, 394, 440, 485, 776, 788, 970, 985, 1067, 1576, 1940, 1970, 2134, 2167, 3880, 3940, 4268, 4334, 5335, 7880, 8536, 8668, 10670, 10835, 17336, 19109, 21340, 21670, 38218, 42680, 43340, 76436, 86680, 95545, 152872, 191090, 210199, 382180, 420398, 764360, 840796, 1050995, 1681592, 2101990, 4203980, 8407960]

約数ペア:

[(1, 8407960), (2, 4203980), (4, 2101990), (5, 1681592), (8, 1050995), (10, 840796), (11, 764360), (20, 420398), (22, 382180), (40, 210199), (44, 191090), (55, 152872), (88, 95545), (97, 86680), (110, 76436), (194, 43340), (197, 42680), (220, 38218), (388, 21670), (394, 21340), (440, 19109), (485, 17336), (776, 10835), (788, 10670), (970, 8668), (985, 8536), (1067, 7880), (1576, 5335), (1940, 4334), (1970, 4268), (2134, 3940), (2167, 3880)]