123756460

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{15907}}^1$

素因数の和:16305

約数の個数: 24

約数和(自身を含む): 260573040

約数和(自身を除く): 136816580

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 15907, 31814, 63628, 79535, 159070, 318140, 6187823, 12375646, 24751292, 30939115, 61878230, 123756460]

約数ペア:

[(1, 123756460), (2, 61878230), (4, 30939115), (5, 24751292), (10, 12375646), (20, 6187823), (389, 318140), (778, 159070), (1556, 79535), (1945, 63628), (3890, 31814), (7780, 15907)]