1245185720

素因数分解:

$2^3\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{25579}}^1$

素因数の和:26807

約数の個数: 32

約数和(自身を含む): 2804079600

約数和(自身を除く): 1558893880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1217, 2434, 4868, 6085, 9736, 12170, 24340, 25579, 48680, 51158, 102316, 127895, 204632, 255790, 511580, 1023160, 31129643, 62259286, 124518572, 155648215, 249037144, 311296430, 622592860, 1245185720]

約数ペア:

[(1, 1245185720), (2, 622592860), (4, 311296430), (5, 249037144), (8, 155648215), (10, 124518572), (20, 62259286), (40, 31129643), (1217, 1023160), (2434, 511580), (4868, 255790), (6085, 204632), (9736, 127895), (12170, 102316), (24340, 51158), (25579, 48680)]