81269345

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{1999}}^1$

素因数の和:2224

約数の個数: 16

約数和(自身を含む): 100224000

約数和(自身を除く): 18954655

約数列:

[1, 5, 47, 173, 235, 865, 1999, 8131, 9995, 40655, 93953, 345827, 469765, 1729135, 16253869, 81269345]

約数ペア:

[(1, 81269345), (5, 16253869), (47, 1729135), (173, 469765), (235, 345827), (865, 93953), (1999, 40655), (8131, 9995)]