16805536360

素因数分解:

$2^3\times 5^1\times {\mathrm{420138409}}^1$

素因数の和:420138420

約数の個数: 16

約数和(自身を含む): 37812456900

約数和(自身を除く): 21006920540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 420138409, 840276818, 1680553636, 2100692045, 3361107272, 4201384090, 8402768180, 16805536360]

約数ペア:

[(1, 16805536360), (2, 8402768180), (4, 4201384090), (5, 3361107272), (8, 2100692045), (10, 1680553636), (20, 840276818), (40, 420138409)]