20017088

素因数分解:

$2^6\times 7^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:530

約数の個数: 84

約数和(自身を含む): 49862232

約数和(自身を除く): 29845144

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 448, 491, 637, 728, 784, 832, 982, 1274, 1456, 1568, 1964, 2548, 2912, 3136, 3437, 3928, 5096, 5824, 6383, 6874, 7856, 10192, 12766, 13748, 15712, 20384, 24059, 25532, 27496, 31424, 40768, 44681, 48118, 51064, 54992, 89362, 96236, 102128, 109984, 178724, 192472, 204256, 219968, 312767, 357448, 384944, 408512, 625534, 714896, 769888, 1251068, 1429792, 1539776, 2502136, 2859584, 5004272, 10008544, 20017088]

約数ペア:

[(1, 20017088), (2, 10008544), (4, 5004272), (7, 2859584), (8, 2502136), (13, 1539776), (14, 1429792), (16, 1251068), (26, 769888), (28, 714896), (32, 625534), (49, 408512), (52, 384944), (56, 357448), (64, 312767), (91, 219968), (98, 204256), (104, 192472), (112, 178724), (182, 109984), (196, 102128), (208, 96236), (224, 89362), (364, 54992), (392, 51064), (416, 48118), (448, 44681), (491, 40768), (637, 31424), (728, 27496), (784, 25532), (832, 24059), (982, 20384), (1274, 15712), (1456, 13748), (1568, 12766), (1964, 10192), (2548, 7856), (2912, 6874), (3136, 6383), (3437, 5824), (3928, 5096)]