818407280

素因数分解:

$2^4\times 5^1\times {\mathrm{10230091}}^1$

素因数の和:10230104

約数の個数: 20

約数和(自身を含む): 1902797112

約数和(自身を除く): 1084389832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10230091, 20460182, 40920364, 51150455, 81840728, 102300910, 163681456, 204601820, 409203640, 818407280]

約数ペア:

[(1, 818407280), (2, 409203640), (4, 204601820), (5, 163681456), (8, 102300910), (10, 81840728), (16, 51150455), (20, 40920364), (40, 20460182), (80, 10230091)]