1660420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1361}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 3546648

約数和(自身を除く): 1886228

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1361, 2722, 5444, 6805, 13610, 27220, 83021, 166042, 332084, 415105, 830210, 1660420]

約数ペア:

[(1, 1660420), (2, 830210), (4, 415105), (5, 332084), (10, 166042), (20, 83021), (61, 27220), (122, 13610), (244, 6805), (305, 5444), (610, 2722), (1220, 1361)]