1617759620

素因数分解:

$2^2\times 5^1\times {\mathrm{4153}}^1\times {\mathrm{19477}}^1$

素因数の和:23639

約数の個数: 24

約数和(自身を含む): 3398287704

約数和(自身を除く): 1780528084

約数列:

[1, 2, 4, 5, 10, 20, 4153, 8306, 16612, 19477, 20765, 38954, 41530, 77908, 83060, 97385, 194770, 389540, 80887981, 161775962, 323551924, 404439905, 808879810, 1617759620]

約数ペア:

[(1, 1617759620), (2, 808879810), (4, 404439905), (5, 323551924), (10, 161775962), (20, 80887981), (4153, 389540), (8306, 194770), (16612, 97385), (19477, 83060), (20765, 77908), (38954, 41530)]