19042540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{857}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 44108064

約数和(自身を除く): 25065524

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 857, 1010, 1111, 1714, 2020, 2222, 3428, 4285, 4444, 5555, 8570, 9427, 11110, 17140, 18854, 22220, 37708, 47135, 86557, 94270, 173114, 188540, 346228, 432785, 865570, 952127, 1731140, 1904254, 3808508, 4760635, 9521270, 19042540]

約数ペア:

[(1, 19042540), (2, 9521270), (4, 4760635), (5, 3808508), (10, 1904254), (11, 1731140), (20, 952127), (22, 865570), (44, 432785), (55, 346228), (101, 188540), (110, 173114), (202, 94270), (220, 86557), (404, 47135), (505, 37708), (857, 22220), (1010, 18854), (1111, 17140), (1714, 11110), (2020, 9427), (2222, 8570), (3428, 5555), (4285, 4444)]