12757455

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 23886720

約数和(自身を除く): 11129265

約数列:

[1, 3, 5, 9, 15, 19, 43, 45, 57, 95, 129, 171, 215, 285, 347, 387, 645, 817, 855, 1041, 1735, 1935, 2451, 3123, 4085, 5205, 6593, 7353, 12255, 14921, 15615, 19779, 32965, 36765, 44763, 59337, 74605, 98895, 134289, 223815, 283499, 296685, 671445, 850497, 1417495, 2551491, 4252485, 12757455]

約数ペア:

[(1, 12757455), (3, 4252485), (5, 2551491), (9, 1417495), (15, 850497), (19, 671445), (43, 296685), (45, 283499), (57, 223815), (95, 134289), (129, 98895), (171, 74605), (215, 59337), (285, 44763), (347, 36765), (387, 32965), (645, 19779), (817, 15615), (855, 14921), (1041, 12255), (1735, 7353), (1935, 6593), (2451, 5205), (3123, 4085)]