72997940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{51407}}^1$

素因数の和:51487

約数の個数: 24

約数和(自身を含む): 155457792

約数和(自身を除く): 82459852

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 51407, 102814, 205628, 257035, 514070, 1028140, 3649897, 7299794, 14599588, 18249485, 36498970, 72997940]

約数ペア:

[(1, 72997940), (2, 36498970), (4, 18249485), (5, 14599588), (10, 7299794), (20, 3649897), (71, 1028140), (142, 514070), (284, 257035), (355, 205628), (710, 102814), (1420, 51407)]