19898889208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{65983}}^1$

素因数の和:66172

約数の個数: 64

約数和(自身を含む): 42757632000

約数和(自身を除く): 22858742792

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 149, 184, 253, 298, 506, 596, 1012, 1192, 1639, 2024, 3278, 3427, 6556, 6854, 13112, 13708, 27416, 37697, 65983, 75394, 131966, 150788, 263932, 301576, 527864, 725813, 1451626, 1517609, 2903252, 3035218, 5806504, 6070436, 9831467, 12140872, 16693699, 19662934, 33387398, 39325868, 66774796, 78651736, 108146137, 133549592, 216292274, 226123741, 432584548, 452247482, 865169096, 904494964, 1808989928, 2487361151, 4974722302, 9949444604, 19898889208]

約数ペア:

[(1, 19898889208), (2, 9949444604), (4, 4974722302), (8, 2487361151), (11, 1808989928), (22, 904494964), (23, 865169096), (44, 452247482), (46, 432584548), (88, 226123741), (92, 216292274), (149, 133549592), (184, 108146137), (253, 78651736), (298, 66774796), (506, 39325868), (596, 33387398), (1012, 19662934), (1192, 16693699), (1639, 12140872), (2024, 9831467), (3278, 6070436), (3427, 5806504), (6556, 3035218), (6854, 2903252), (13112, 1517609), (13708, 1451626), (27416, 725813), (37697, 527864), (65983, 301576), (75394, 263932), (131966, 150788)]