18724264

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21192536

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 53, 79, 86, 104, 106, 158, 172, 212, 316, 344, 424, 559, 632, 689, 1027, 1118, 1378, 2054, 2236, 2279, 2756, 3397, 4108, 4187, 4472, 4558, 5512, 6794, 8216, 8374, 9116, 13588, 16748, 18232, 27176, 29627, 33496, 44161, 54431, 59254, 88322, 108862, 118508, 176644, 180041, 217724, 237016, 353288, 360082, 435448, 720164, 1440328, 2340533, 4681066, 9362132, 18724264]

約数ペア:

[(1, 18724264), (2, 9362132), (4, 4681066), (8, 2340533), (13, 1440328), (26, 720164), (43, 435448), (52, 360082), (53, 353288), (79, 237016), (86, 217724), (104, 180041), (106, 176644), (158, 118508), (172, 108862), (212, 88322), (316, 59254), (344, 54431), (424, 44161), (559, 33496), (632, 29627), (689, 27176), (1027, 18232), (1118, 16748), (1378, 13588), (2054, 9116), (2236, 8374), (2279, 8216), (2756, 6794), (3397, 5512), (4108, 4558), (4187, 4472)]