20282890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69941}}^1$

素因数の和:69977

約数の個数: 16

約数和(自身を含む): 37768680

約数和(自身を除く): 17485790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 69941, 139882, 349705, 699410, 2028289, 4056578, 10141445, 20282890]

約数ペア:

[(1, 20282890), (2, 10141445), (5, 4056578), (10, 2028289), (29, 699410), (58, 349705), (145, 139882), (290, 69941)]