780838480

素因数分解:

$2^4\times 5^1\times {\mathrm{9760481}}^1$

素因数の和:9760494

約数の個数: 20

約数和(自身を含む): 1815449652

約数和(自身を除く): 1034611172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9760481, 19520962, 39041924, 48802405, 78083848, 97604810, 156167696, 195209620, 390419240, 780838480]

約数ペア:

[(1, 780838480), (2, 390419240), (4, 195209620), (5, 156167696), (8, 97604810), (10, 78083848), (16, 48802405), (20, 39041924), (40, 19520962), (80, 9760481)]