20871400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 54237600

約数和(自身を除く): 33366200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 53, 55, 88, 100, 106, 110, 179, 200, 212, 220, 265, 275, 358, 424, 440, 530, 550, 583, 716, 895, 1060, 1100, 1166, 1325, 1432, 1790, 1969, 2120, 2200, 2332, 2650, 2915, 3580, 3938, 4475, 4664, 5300, 5830, 7160, 7876, 8950, 9487, 9845, 10600, 11660, 14575, 15752, 17900, 18974, 19690, 23320, 29150, 35800, 37948, 39380, 47435, 49225, 58300, 75896, 78760, 94870, 98450, 104357, 116600, 189740, 196900, 208714, 237175, 379480, 393800, 417428, 474350, 521785, 834856, 948700, 1043570, 1897400, 2087140, 2608925, 4174280, 5217850, 10435700, 20871400]

約数ペア:

[(1, 20871400), (2, 10435700), (4, 5217850), (5, 4174280), (8, 2608925), (10, 2087140), (11, 1897400), (20, 1043570), (22, 948700), (25, 834856), (40, 521785), (44, 474350), (50, 417428), (53, 393800), (55, 379480), (88, 237175), (100, 208714), (106, 196900), (110, 189740), (179, 116600), (200, 104357), (212, 98450), (220, 94870), (265, 78760), (275, 75896), (358, 58300), (424, 49225), (440, 47435), (530, 39380), (550, 37948), (583, 35800), (716, 29150), (895, 23320), (1060, 19690), (1100, 18974), (1166, 17900), (1325, 15752), (1432, 14575), (1790, 11660), (1969, 10600), (2120, 9845), (2200, 9487), (2332, 8950), (2650, 7876), (2915, 7160), (3580, 5830), (3938, 5300), (4475, 4664)]