20402976

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^2$

素因数の和:302

約数の個数: 72

約数和(自身を含む): 58850064

約数和(自身を除く): 38447088

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 139, 176, 264, 278, 352, 417, 528, 556, 834, 1056, 1112, 1529, 1668, 2224, 3058, 3336, 4448, 4587, 6116, 6672, 9174, 12232, 13344, 18348, 19321, 24464, 36696, 38642, 48928, 57963, 73392, 77284, 115926, 146784, 154568, 212531, 231852, 309136, 425062, 463704, 618272, 637593, 850124, 927408, 1275186, 1700248, 1854816, 2550372, 3400496, 5100744, 6800992, 10201488, 20402976]

約数ペア:

[(1, 20402976), (2, 10201488), (3, 6800992), (4, 5100744), (6, 3400496), (8, 2550372), (11, 1854816), (12, 1700248), (16, 1275186), (22, 927408), (24, 850124), (32, 637593), (33, 618272), (44, 463704), (48, 425062), (66, 309136), (88, 231852), (96, 212531), (132, 154568), (139, 146784), (176, 115926), (264, 77284), (278, 73392), (352, 57963), (417, 48928), (528, 38642), (556, 36696), (834, 24464), (1056, 19321), (1112, 18348), (1529, 13344), (1668, 12232), (2224, 9174), (3058, 6672), (3336, 6116), (4448, 4587)]