19335580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 25298660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 491, 716, 895, 982, 1790, 1964, 1969, 2455, 3580, 3938, 4910, 5401, 7876, 9820, 9845, 10802, 19690, 21604, 27005, 39380, 54010, 87889, 108020, 175778, 351556, 439445, 878890, 966779, 1757780, 1933558, 3867116, 4833895, 9667790, 19335580]

約数ペア:

[(1, 19335580), (2, 9667790), (4, 4833895), (5, 3867116), (10, 1933558), (11, 1757780), (20, 966779), (22, 878890), (44, 439445), (55, 351556), (110, 175778), (179, 108020), (220, 87889), (358, 54010), (491, 39380), (716, 27005), (895, 21604), (982, 19690), (1790, 10802), (1964, 9845), (1969, 9820), (2455, 7876), (3580, 5401), (3938, 4910)]