137680880

素因数分解:

$2^4\times 5^1\times {\mathrm{1721011}}^1$

素因数の和:1721024

約数の個数: 20

約数和(自身を含む): 320108232

約数和(自身を除く): 182427352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1721011, 3442022, 6884044, 8605055, 13768088, 17210110, 27536176, 34420220, 68840440, 137680880]

約数ペア:

[(1, 137680880), (2, 68840440), (4, 34420220), (5, 27536176), (8, 17210110), (10, 13768088), (16, 8605055), (20, 6884044), (40, 3442022), (80, 1721011)]