1261892720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{8011}}^1$

素因数の和:8214

約数の個数: 80

約数和(自身を含む): 3218901120

約数和(自身を除く): 1957008400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 179, 220, 358, 440, 716, 880, 895, 1432, 1790, 1969, 2864, 3580, 3938, 7160, 7876, 8011, 9845, 14320, 15752, 16022, 19690, 31504, 32044, 39380, 40055, 64088, 78760, 80110, 88121, 128176, 157520, 160220, 176242, 320440, 352484, 440605, 640880, 704968, 881210, 1409936, 1433969, 1762420, 2867938, 3524840, 5735876, 7049680, 7169845, 11471752, 14339690, 15773659, 22943504, 28679380, 31547318, 57358760, 63094636, 78868295, 114717520, 126189272, 157736590, 252378544, 315473180, 630946360, 1261892720]

約数ペア:

[(1, 1261892720), (2, 630946360), (4, 315473180), (5, 252378544), (8, 157736590), (10, 126189272), (11, 114717520), (16, 78868295), (20, 63094636), (22, 57358760), (40, 31547318), (44, 28679380), (55, 22943504), (80, 15773659), (88, 14339690), (110, 11471752), (176, 7169845), (179, 7049680), (220, 5735876), (358, 3524840), (440, 2867938), (716, 1762420), (880, 1433969), (895, 1409936), (1432, 881210), (1790, 704968), (1969, 640880), (2864, 440605), (3580, 352484), (3938, 320440), (7160, 176242), (7876, 160220), (8011, 157520), (9845, 128176), (14320, 88121), (15752, 80110), (16022, 78760), (19690, 64088), (31504, 40055), (32044, 39380)]