30780045

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15907}}^1$

素因数の和:15961

約数の個数: 24

約数和(自身を含む): 54596256

約数和(自身を除く): 23816211

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 15907, 47721, 79535, 143163, 238605, 684001, 715815, 2052003, 3420005, 6156009, 10260015, 30780045]

約数ペア:

[(1, 30780045), (3, 10260015), (5, 6156009), (9, 3420005), (15, 2052003), (43, 715815), (45, 684001), (129, 238605), (215, 143163), (387, 79535), (645, 47721), (1935, 15907)]