12145780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 27054720

約数和(自身を除く): 14908940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 487, 580, 860, 974, 1247, 1948, 2435, 2494, 4870, 4988, 6235, 9740, 12470, 14123, 20941, 24940, 28246, 41882, 56492, 70615, 83764, 104705, 141230, 209410, 282460, 418820, 607289, 1214578, 2429156, 3036445, 6072890, 12145780]

約数ペア:

[(1, 12145780), (2, 6072890), (4, 3036445), (5, 2429156), (10, 1214578), (20, 607289), (29, 418820), (43, 282460), (58, 209410), (86, 141230), (116, 104705), (145, 83764), (172, 70615), (215, 56492), (290, 41882), (430, 28246), (487, 24940), (580, 20941), (860, 14123), (974, 12470), (1247, 9740), (1948, 6235), (2435, 4988), (2494, 4870)]