17580280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 24332360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 197, 230, 388, 394, 460, 485, 776, 788, 920, 970, 985, 1576, 1940, 1970, 2231, 3880, 3940, 4462, 4531, 7880, 8924, 9062, 11155, 17848, 18124, 19109, 22310, 22655, 36248, 38218, 44620, 45310, 76436, 89240, 90620, 95545, 152872, 181240, 191090, 382180, 439507, 764360, 879014, 1758028, 2197535, 3516056, 4395070, 8790140, 17580280]

約数ペア:

[(1, 17580280), (2, 8790140), (4, 4395070), (5, 3516056), (8, 2197535), (10, 1758028), (20, 879014), (23, 764360), (40, 439507), (46, 382180), (92, 191090), (97, 181240), (115, 152872), (184, 95545), (194, 90620), (197, 89240), (230, 76436), (388, 45310), (394, 44620), (460, 38218), (485, 36248), (776, 22655), (788, 22310), (920, 19109), (970, 18124), (985, 17848), (1576, 11155), (1940, 9062), (1970, 8924), (2231, 7880), (3880, 4531), (3940, 4462)]