213889720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4813}}^1$

素因数の和:4936

約数の個数: 64

約数和(自身を含む): 530310240

約数和(自身を除く): 316420520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 808, 1010, 1111, 2020, 2222, 4040, 4444, 4813, 5555, 8888, 9626, 11110, 19252, 22220, 24065, 38504, 44440, 48130, 52943, 96260, 105886, 192520, 211772, 264715, 423544, 486113, 529430, 972226, 1058860, 1944452, 2117720, 2430565, 3888904, 4861130, 5347243, 9722260, 10694486, 19444520, 21388972, 26736215, 42777944, 53472430, 106944860, 213889720]

約数ペア:

[(1, 213889720), (2, 106944860), (4, 53472430), (5, 42777944), (8, 26736215), (10, 21388972), (11, 19444520), (20, 10694486), (22, 9722260), (40, 5347243), (44, 4861130), (55, 3888904), (88, 2430565), (101, 2117720), (110, 1944452), (202, 1058860), (220, 972226), (404, 529430), (440, 486113), (505, 423544), (808, 264715), (1010, 211772), (1111, 192520), (2020, 105886), (2222, 96260), (4040, 52943), (4444, 48130), (4813, 44440), (5555, 38504), (8888, 24065), (9626, 22220), (11110, 19252)]