20099464

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 47784960

約数和(自身を除く): 27685496

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 67, 77, 88, 134, 154, 268, 308, 469, 487, 536, 616, 737, 938, 974, 1474, 1876, 1948, 2948, 3409, 3752, 3896, 5159, 5357, 5896, 6818, 10318, 10714, 13636, 20636, 21428, 27272, 32629, 37499, 41272, 42856, 65258, 74998, 130516, 149996, 228403, 261032, 299992, 358919, 456806, 717838, 913612, 1435676, 1827224, 2512433, 2871352, 5024866, 10049732, 20099464]

約数ペア:

[(1, 20099464), (2, 10049732), (4, 5024866), (7, 2871352), (8, 2512433), (11, 1827224), (14, 1435676), (22, 913612), (28, 717838), (44, 456806), (56, 358919), (67, 299992), (77, 261032), (88, 228403), (134, 149996), (154, 130516), (268, 74998), (308, 65258), (469, 42856), (487, 41272), (536, 37499), (616, 32629), (737, 27272), (938, 21428), (974, 20636), (1474, 13636), (1876, 10714), (1948, 10318), (2948, 6818), (3409, 5896), (3752, 5357), (3896, 5159)]