2080480820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{859}}^1$

素因数の和:1089

約数の個数: 96

約数和(自身を含む): 4863196800

約数和(自身を除く): 2782715980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 109, 110, 202, 218, 220, 404, 436, 505, 545, 859, 1010, 1090, 1111, 1199, 1718, 2020, 2180, 2222, 2398, 3436, 4295, 4444, 4796, 5555, 5995, 8590, 9449, 11009, 11110, 11990, 17180, 18898, 22018, 22220, 23980, 37796, 44036, 47245, 55045, 86759, 93631, 94490, 110090, 121099, 173518, 187262, 188980, 220180, 242198, 347036, 374524, 433795, 468155, 484396, 605495, 867590, 936310, 954349, 1029941, 1210990, 1735180, 1872620, 1908698, 2059882, 2421980, 3817396, 4119764, 4771745, 5149705, 9456731, 9543490, 10299410, 18913462, 19086980, 20598820, 37826924, 47283655, 94567310, 104024041, 189134620, 208048082, 416096164, 520120205, 1040240410, 2080480820]

約数ペア:

[(1, 2080480820), (2, 1040240410), (4, 520120205), (5, 416096164), (10, 208048082), (11, 189134620), (20, 104024041), (22, 94567310), (44, 47283655), (55, 37826924), (101, 20598820), (109, 19086980), (110, 18913462), (202, 10299410), (218, 9543490), (220, 9456731), (404, 5149705), (436, 4771745), (505, 4119764), (545, 3817396), (859, 2421980), (1010, 2059882), (1090, 1908698), (1111, 1872620), (1199, 1735180), (1718, 1210990), (2020, 1029941), (2180, 954349), (2222, 936310), (2398, 867590), (3436, 605495), (4295, 484396), (4444, 468155), (4796, 433795), (5555, 374524), (5995, 347036), (8590, 242198), (9449, 220180), (11009, 188980), (11110, 187262), (11990, 173518), (17180, 121099), (18898, 110090), (22018, 94490), (22220, 93631), (23980, 86759), (37796, 55045), (44036, 47245)]