8790140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 19559232

約数和(自身を除く): 10769092

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 197, 230, 388, 394, 460, 485, 788, 970, 985, 1940, 1970, 2231, 3940, 4462, 4531, 8924, 9062, 11155, 18124, 19109, 22310, 22655, 38218, 44620, 45310, 76436, 90620, 95545, 191090, 382180, 439507, 879014, 1758028, 2197535, 4395070, 8790140]

約数ペア:

[(1, 8790140), (2, 4395070), (4, 2197535), (5, 1758028), (10, 879014), (20, 439507), (23, 382180), (46, 191090), (92, 95545), (97, 90620), (115, 76436), (194, 45310), (197, 44620), (230, 38218), (388, 22655), (394, 22310), (460, 19109), (485, 18124), (788, 11155), (970, 9062), (985, 8924), (1940, 4531), (1970, 4462), (2231, 3940)]