81305675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1709}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 110684880

約数和(自身を除く): 29379205

約数列:

[1, 5, 11, 25, 55, 173, 275, 865, 1709, 1903, 4325, 8545, 9515, 18799, 42725, 47575, 93995, 295657, 469975, 1478285, 3252227, 7391425, 16261135, 81305675]

約数ペア:

[(1, 81305675), (5, 16261135), (11, 7391425), (25, 3252227), (55, 1478285), (173, 469975), (275, 295657), (865, 93995), (1709, 47575), (1903, 42725), (4325, 18799), (8545, 9515)]