131020380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{727891}}^1$

素因数の和:727906

約数の個数: 36

約数和(自身を含む): 397429032

約数和(自身を除く): 266408652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 727891, 1455782, 2183673, 2911564, 3639455, 4367346, 6551019, 7278910, 8734692, 10918365, 13102038, 14557820, 21836730, 26204076, 32755095, 43673460, 65510190, 131020380]

約数ペア:

[(1, 131020380), (2, 65510190), (3, 43673460), (4, 32755095), (5, 26204076), (6, 21836730), (9, 14557820), (10, 13102038), (12, 10918365), (15, 8734692), (18, 7278910), (20, 6551019), (30, 4367346), (36, 3639455), (45, 2911564), (60, 2183673), (90, 1455782), (180, 727891)]