20133760

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 48678480

約数和(自身を除く): 28544720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 193, 320, 326, 386, 640, 652, 772, 815, 965, 1304, 1544, 1630, 1930, 2608, 3088, 3260, 3860, 5216, 6176, 6520, 7720, 10432, 12352, 13040, 15440, 20864, 24704, 26080, 30880, 31459, 52160, 61760, 62918, 104320, 123520, 125836, 157295, 251672, 314590, 503344, 629180, 1006688, 1258360, 2013376, 2516720, 4026752, 5033440, 10066880, 20133760]

約数ペア:

[(1, 20133760), (2, 10066880), (4, 5033440), (5, 4026752), (8, 2516720), (10, 2013376), (16, 1258360), (20, 1006688), (32, 629180), (40, 503344), (64, 314590), (80, 251672), (128, 157295), (160, 125836), (163, 123520), (193, 104320), (320, 62918), (326, 61760), (386, 52160), (640, 31459), (652, 30880), (772, 26080), (815, 24704), (965, 20864), (1304, 15440), (1544, 13040), (1630, 12352), (1930, 10432), (2608, 7720), (3088, 6520), (3260, 6176), (3860, 5216)]