71200520

素因数分解:

$2^3\times 5^1\times {\mathrm{1780013}}^1$

素因数の和:1780024

約数の個数: 16

約数和(自身を含む): 160201260

約数和(自身を除く): 89000740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1780013, 3560026, 7120052, 8900065, 14240104, 17800130, 35600260, 71200520]

約数ペア:

[(1, 71200520), (2, 35600260), (4, 17800130), (5, 14240104), (8, 8900065), (10, 7120052), (20, 3560026), (40, 1780013)]