12780350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1223}}^1$

素因数の和:1265

約数の個数: 48

約数和(自身を含む): 27319680

約数和(自身を除く): 14539330

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 1223, 2090, 2446, 5225, 6115, 10450, 12230, 13453, 23237, 26906, 30575, 46474, 61150, 67265, 116185, 134530, 232370, 255607, 336325, 511214, 580925, 672650, 1161850, 1278035, 2556070, 6390175, 12780350]

約数ペア:

[(1, 12780350), (2, 6390175), (5, 2556070), (10, 1278035), (11, 1161850), (19, 672650), (22, 580925), (25, 511214), (38, 336325), (50, 255607), (55, 232370), (95, 134530), (110, 116185), (190, 67265), (209, 61150), (275, 46474), (418, 30575), (475, 26906), (550, 23237), (950, 13453), (1045, 12230), (1223, 10450), (2090, 6115), (2446, 5225)]