804913420

素因数分解:

$2^2\times 5^1\times {\mathrm{40245671}}^1$

素因数の和:40245680

約数の個数: 12

約数和(自身を含む): 1690318224

約数和(自身を除く): 885404804

約数列:

[1, 2, 4, 5, 10, 20, 40245671, 80491342, 160982684, 201228355, 402456710, 804913420]

約数ペア:

[(1, 804913420), (2, 402456710), (4, 201228355), (5, 160982684), (10, 80491342), (20, 40245671)]