20438220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42702900

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 173, 179, 220, 330, 346, 358, 519, 537, 660, 692, 716, 865, 895, 1038, 1074, 1730, 1790, 1903, 1969, 2076, 2148, 2595, 2685, 3460, 3580, 3806, 3938, 5190, 5370, 5709, 5907, 7612, 7876, 9515, 9845, 10380, 10740, 11418, 11814, 19030, 19690, 22836, 23628, 28545, 29535, 30967, 38060, 39380, 57090, 59070, 61934, 92901, 114180, 118140, 123868, 154835, 185802, 309670, 340637, 371604, 464505, 619340, 681274, 929010, 1021911, 1362548, 1703185, 1858020, 2043822, 3406370, 4087644, 5109555, 6812740, 10219110, 20438220]

約数ペア:

[(1, 20438220), (2, 10219110), (3, 6812740), (4, 5109555), (5, 4087644), (6, 3406370), (10, 2043822), (11, 1858020), (12, 1703185), (15, 1362548), (20, 1021911), (22, 929010), (30, 681274), (33, 619340), (44, 464505), (55, 371604), (60, 340637), (66, 309670), (110, 185802), (132, 154835), (165, 123868), (173, 118140), (179, 114180), (220, 92901), (330, 61934), (346, 59070), (358, 57090), (519, 39380), (537, 38060), (660, 30967), (692, 29535), (716, 28545), (865, 23628), (895, 22836), (1038, 19690), (1074, 19030), (1730, 11814), (1790, 11418), (1903, 10740), (1969, 10380), (2076, 9845), (2148, 9515), (2595, 7876), (2685, 7612), (3460, 5907), (3580, 5709), (3806, 5370), (3938, 5190)]