80913440

素因数分解:

$2^5\times 5^1\times {\mathrm{505709}}^1$

素因数の和:505724

約数の個数: 24

約数和(自身を含む): 191158380

約数和(自身を除く): 110244940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 505709, 1011418, 2022836, 2528545, 4045672, 5057090, 8091344, 10114180, 16182688, 20228360, 40456720, 80913440]

約数ペア:

[(1, 80913440), (2, 40456720), (4, 20228360), (5, 16182688), (8, 10114180), (10, 8091344), (16, 5057090), (20, 4045672), (32, 2528545), (40, 2022836), (80, 1011418), (160, 505709)]