20004372016

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4449371}}^1$

素因数の和:4449660

約数の個数: 20

約数和(自身を含む): 38896410024

約数和(自身を除く): 18892038008

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4449371, 8898742, 17797484, 35594968, 71189936, 1250273251, 2500546502, 5001093004, 10002186008, 20004372016]

約数ペア:

[(1, 20004372016), (2, 10002186008), (4, 5001093004), (8, 2500546502), (16, 1250273251), (281, 71189936), (562, 35594968), (1124, 17797484), (2248, 8898742), (4496, 4449371)]