188357420

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{19181}}^1$

素因数の和:19681

約数の個数: 24

約数和(自身を含む): 396376848

約数和(自身を除く): 208019428

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 19181, 38362, 76724, 95905, 191810, 383620, 9417871, 18835742, 37671484, 47089355, 94178710, 188357420]

約数ペア:

[(1, 188357420), (2, 94178710), (4, 47089355), (5, 37671484), (10, 18835742), (20, 9417871), (491, 383620), (982, 191810), (1964, 95905), (2455, 76724), (4910, 38362), (9820, 19181)]