20442560

素因数分解:

$2^6\times 5^1\times {\mathrm{193}}^1\times {\mathrm{331}}^1$

素因数の和:541

約数の個数: 56

約数和(自身を含む): 49078896

約数和(自身を除く): 28636336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 193, 320, 331, 386, 662, 772, 965, 1324, 1544, 1655, 1930, 2648, 3088, 3310, 3860, 5296, 6176, 6620, 7720, 10592, 12352, 13240, 15440, 21184, 26480, 30880, 52960, 61760, 63883, 105920, 127766, 255532, 319415, 511064, 638830, 1022128, 1277660, 2044256, 2555320, 4088512, 5110640, 10221280, 20442560]

約数ペア:

[(1, 20442560), (2, 10221280), (4, 5110640), (5, 4088512), (8, 2555320), (10, 2044256), (16, 1277660), (20, 1022128), (32, 638830), (40, 511064), (64, 319415), (80, 255532), (160, 127766), (193, 105920), (320, 63883), (331, 61760), (386, 52960), (662, 30880), (772, 26480), (965, 21184), (1324, 15440), (1544, 13240), (1655, 12352), (1930, 10592), (2648, 7720), (3088, 6620), (3310, 6176), (3860, 5296)]