123695420

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{32381}}^1$

素因数の和:32581

約数の個数: 24

約数和(自身を含む): 261128448

約数和(自身を除く): 137433028

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 32381, 64762, 129524, 161905, 323810, 647620, 6184771, 12369542, 24739084, 30923855, 61847710, 123695420]

約数ペア:

[(1, 123695420), (2, 61847710), (4, 30923855), (5, 24739084), (10, 12369542), (20, 6184771), (191, 647620), (382, 323810), (764, 161905), (955, 129524), (1910, 64762), (3820, 32381)]