4203980

素因数分解:

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

素因数の和:314

約数の個数: 48

約数和(自身を含む): 9779616

約数和(自身を除く): 5575636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 197, 220, 388, 394, 485, 788, 970, 985, 1067, 1940, 1970, 2134, 2167, 3940, 4268, 4334, 5335, 8668, 10670, 10835, 19109, 21340, 21670, 38218, 43340, 76436, 95545, 191090, 210199, 382180, 420398, 840796, 1050995, 2101990, 4203980]

約数ペア:

[(1, 4203980), (2, 2101990), (4, 1050995), (5, 840796), (10, 420398), (11, 382180), (20, 210199), (22, 191090), (44, 95545), (55, 76436), (97, 43340), (110, 38218), (194, 21670), (197, 21340), (220, 19109), (388, 10835), (394, 10670), (485, 8668), (788, 5335), (970, 4334), (985, 4268), (1067, 3940), (1940, 2167), (1970, 2134)]