211195280

素因数分解:

$2^4\times 5^1\times {\mathrm{2639941}}^1$

素因数の和:2639954

約数の個数: 20

約数和(自身を含む): 491029212

約数和(自身を除く): 279833932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2639941, 5279882, 10559764, 13199705, 21119528, 26399410, 42239056, 52798820, 105597640, 211195280]

約数ペア:

[(1, 211195280), (2, 105597640), (4, 52798820), (5, 42239056), (8, 26399410), (10, 21119528), (16, 13199705), (20, 10559764), (40, 5279882), (80, 2639941)]