8681309090

素因数分解:

$2^1\times 5^1\times {\mathrm{21943}}^1\times {\mathrm{39563}}^1$

素因数の和:61513

約数の個数: 16

約数和(自身を含む): 15627463488

約数和(自身を除く): 6946154398

約数列:

[1, 2, 5, 10, 21943, 39563, 43886, 79126, 109715, 197815, 219430, 395630, 868130909, 1736261818, 4340654545, 8681309090]

約数ペア:

[(1, 8681309090), (2, 4340654545), (5, 1736261818), (10, 868130909), (21943, 395630), (39563, 219430), (43886, 197815), (79126, 109715)]