20777680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3373}}^1$

素因数の和:3404

約数の個数: 80

約数和(自身を含む): 60246144

約数和(自身を除く): 39468464

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3373, 6160, 6746, 13492, 16865, 23611, 26984, 33730, 37103, 47222, 53968, 67460, 74206, 94444, 118055, 134920, 148412, 185515, 188888, 236110, 259721, 269840, 296824, 371030, 377776, 472220, 519442, 593648, 742060, 944440, 1038884, 1298605, 1484120, 1888880, 2077768, 2597210, 2968240, 4155536, 5194420, 10388840, 20777680]

約数ペア:

[(1, 20777680), (2, 10388840), (4, 5194420), (5, 4155536), (7, 2968240), (8, 2597210), (10, 2077768), (11, 1888880), (14, 1484120), (16, 1298605), (20, 1038884), (22, 944440), (28, 742060), (35, 593648), (40, 519442), (44, 472220), (55, 377776), (56, 371030), (70, 296824), (77, 269840), (80, 259721), (88, 236110), (110, 188888), (112, 185515), (140, 148412), (154, 134920), (176, 118055), (220, 94444), (280, 74206), (308, 67460), (385, 53968), (440, 47222), (560, 37103), (616, 33730), (770, 26984), (880, 23611), (1232, 16865), (1540, 13492), (3080, 6746), (3373, 6160)]