388840960

素因数分解:

$2^9\times 5^1\times {\mathrm{193}}^1\times {\mathrm{787}}^1$

素因数の和:1003

約数の個数: 80

約数和(自身を含む): 938328336

約数和(自身を除く): 549487376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 320, 386, 512, 640, 772, 787, 965, 1280, 1544, 1574, 1930, 2560, 3088, 3148, 3860, 3935, 6176, 6296, 7720, 7870, 12352, 12592, 15440, 15740, 24704, 25184, 30880, 31480, 49408, 50368, 61760, 62960, 98816, 100736, 123520, 125920, 151891, 201472, 247040, 251840, 303782, 402944, 494080, 503680, 607564, 759455, 1007360, 1215128, 1518910, 2014720, 2430256, 3037820, 4860512, 6075640, 9721024, 12151280, 19442048, 24302560, 38884096, 48605120, 77768192, 97210240, 194420480, 388840960]

約数ペア:

[(1, 388840960), (2, 194420480), (4, 97210240), (5, 77768192), (8, 48605120), (10, 38884096), (16, 24302560), (20, 19442048), (32, 12151280), (40, 9721024), (64, 6075640), (80, 4860512), (128, 3037820), (160, 2430256), (193, 2014720), (256, 1518910), (320, 1215128), (386, 1007360), (512, 759455), (640, 607564), (772, 503680), (787, 494080), (965, 402944), (1280, 303782), (1544, 251840), (1574, 247040), (1930, 201472), (2560, 151891), (3088, 125920), (3148, 123520), (3860, 100736), (3935, 98816), (6176, 62960), (6296, 61760), (7720, 50368), (7870, 49408), (12352, 31480), (12592, 30880), (15440, 25184), (15740, 24704)]