28321216

素因数分解:

$2^6\times 7^2\times {\mathrm{11}}^1\times {\mathrm{821}}^1$

素因数の和:858

約数の個数: 84

約数和(自身を含む): 71405496

約数和(自身を除く): 43084280

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 154, 176, 196, 224, 308, 352, 392, 448, 539, 616, 704, 784, 821, 1078, 1232, 1568, 1642, 2156, 2464, 3136, 3284, 4312, 4928, 5747, 6568, 8624, 9031, 11494, 13136, 17248, 18062, 22988, 26272, 34496, 36124, 40229, 45976, 52544, 63217, 72248, 80458, 91952, 126434, 144496, 160916, 183904, 252868, 288992, 321832, 367808, 442519, 505736, 577984, 643664, 885038, 1011472, 1287328, 1770076, 2022944, 2574656, 3540152, 4045888, 7080304, 14160608, 28321216]

約数ペア:

[(1, 28321216), (2, 14160608), (4, 7080304), (7, 4045888), (8, 3540152), (11, 2574656), (14, 2022944), (16, 1770076), (22, 1287328), (28, 1011472), (32, 885038), (44, 643664), (49, 577984), (56, 505736), (64, 442519), (77, 367808), (88, 321832), (98, 288992), (112, 252868), (154, 183904), (176, 160916), (196, 144496), (224, 126434), (308, 91952), (352, 80458), (392, 72248), (448, 63217), (539, 52544), (616, 45976), (704, 40229), (784, 36124), (821, 34496), (1078, 26272), (1232, 22988), (1568, 18062), (1642, 17248), (2156, 13136), (2464, 11494), (3136, 9031), (3284, 8624), (4312, 6568), (4928, 5747)]