28365920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 74462976

約数和(自身を除く): 46097056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 80, 88, 110, 142, 160, 176, 220, 227, 284, 352, 355, 440, 454, 568, 710, 781, 880, 908, 1135, 1136, 1420, 1562, 1760, 1816, 2270, 2272, 2497, 2840, 3124, 3632, 3905, 4540, 4994, 5680, 6248, 7264, 7810, 9080, 9988, 11360, 12485, 12496, 15620, 16117, 18160, 19976, 24970, 24992, 31240, 32234, 36320, 39952, 49940, 62480, 64468, 79904, 80585, 99880, 124960, 128936, 161170, 177287, 199760, 257872, 322340, 354574, 399520, 515744, 644680, 709148, 886435, 1289360, 1418296, 1772870, 2578720, 2836592, 3545740, 5673184, 7091480, 14182960, 28365920]

約数ペア:

[(1, 28365920), (2, 14182960), (4, 7091480), (5, 5673184), (8, 3545740), (10, 2836592), (11, 2578720), (16, 1772870), (20, 1418296), (22, 1289360), (32, 886435), (40, 709148), (44, 644680), (55, 515744), (71, 399520), (80, 354574), (88, 322340), (110, 257872), (142, 199760), (160, 177287), (176, 161170), (220, 128936), (227, 124960), (284, 99880), (352, 80585), (355, 79904), (440, 64468), (454, 62480), (568, 49940), (710, 39952), (781, 36320), (880, 32234), (908, 31240), (1135, 24992), (1136, 24970), (1420, 19976), (1562, 18160), (1760, 16117), (1816, 15620), (2270, 12496), (2272, 12485), (2497, 11360), (2840, 9988), (3124, 9080), (3632, 7810), (3905, 7264), (4540, 6248), (4994, 5680)]