1023778820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{720971}}^1$

素因数の和:721051

約数の個数: 24

約数和(自身を含む): 2180219328

約数和(自身を除く): 1156440508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 720971, 1441942, 2883884, 3604855, 7209710, 14419420, 51188941, 102377882, 204755764, 255944705, 511889410, 1023778820]

約数ペア:

[(1, 1023778820), (2, 511889410), (4, 255944705), (5, 204755764), (10, 102377882), (20, 51188941), (71, 14419420), (142, 7209710), (284, 3604855), (355, 2883884), (710, 1441942), (1420, 720971)]