12680356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 25147584

約数和(自身を除く): 12467228

約数列:

[1, 2, 4, 13, 26, 43, 52, 53, 86, 106, 107, 172, 212, 214, 428, 559, 689, 1118, 1378, 1391, 2236, 2279, 2756, 2782, 4558, 4601, 5564, 5671, 9116, 9202, 11342, 18404, 22684, 29627, 59254, 59813, 73723, 118508, 119626, 147446, 239252, 243853, 294892, 487706, 975412, 3170089, 6340178, 12680356]

約数ペア:

[(1, 12680356), (2, 6340178), (4, 3170089), (13, 975412), (26, 487706), (43, 294892), (52, 243853), (53, 239252), (86, 147446), (106, 119626), (107, 118508), (172, 73723), (212, 59813), (214, 59254), (428, 29627), (559, 22684), (689, 18404), (1118, 11342), (1378, 9202), (1391, 9116), (2236, 5671), (2279, 5564), (2756, 4601), (2782, 4558)]