205544240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1783}}^1$

素因数の和:1938

約数の個数: 80

約数和(自身を含む): 525609216

約数和(自身を除く): 320064976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 131, 176, 220, 262, 440, 524, 655, 880, 1048, 1310, 1441, 1783, 2096, 2620, 2882, 3566, 5240, 5764, 7132, 7205, 8915, 10480, 11528, 14264, 14410, 17830, 19613, 23056, 28528, 28820, 35660, 39226, 57640, 71320, 78452, 98065, 115280, 142640, 156904, 196130, 233573, 313808, 392260, 467146, 784520, 934292, 1167865, 1569040, 1868584, 2335730, 2569303, 3737168, 4671460, 5138606, 9342920, 10277212, 12846515, 18685840, 20554424, 25693030, 41108848, 51386060, 102772120, 205544240]

約数ペア:

[(1, 205544240), (2, 102772120), (4, 51386060), (5, 41108848), (8, 25693030), (10, 20554424), (11, 18685840), (16, 12846515), (20, 10277212), (22, 9342920), (40, 5138606), (44, 4671460), (55, 3737168), (80, 2569303), (88, 2335730), (110, 1868584), (131, 1569040), (176, 1167865), (220, 934292), (262, 784520), (440, 467146), (524, 392260), (655, 313808), (880, 233573), (1048, 196130), (1310, 156904), (1441, 142640), (1783, 115280), (2096, 98065), (2620, 78452), (2882, 71320), (3566, 57640), (5240, 39226), (5764, 35660), (7132, 28820), (7205, 28528), (8915, 23056), (10480, 19613), (11528, 17830), (14264, 14410)]