211569904

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{439}}^1$

素因数の和:798

約数の個数: 80

約数和(自身を含む): 507189760

約数和(自身を除く): 295619856

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 331, 364, 439, 662, 728, 878, 1324, 1456, 1756, 2317, 2648, 3073, 3512, 4303, 4634, 5296, 5707, 6146, 7024, 8606, 9268, 11414, 12292, 17212, 18536, 22828, 24584, 30121, 34424, 37072, 39949, 45656, 49168, 60242, 68848, 79898, 91312, 120484, 145309, 159796, 240968, 290618, 319592, 481936, 581236, 639184, 1017163, 1162472, 1889017, 2034326, 2324944, 3778034, 4068652, 7556068, 8137304, 13223119, 15112136, 16274608, 26446238, 30224272, 52892476, 105784952, 211569904]

約数ペア:

[(1, 211569904), (2, 105784952), (4, 52892476), (7, 30224272), (8, 26446238), (13, 16274608), (14, 15112136), (16, 13223119), (26, 8137304), (28, 7556068), (52, 4068652), (56, 3778034), (91, 2324944), (104, 2034326), (112, 1889017), (182, 1162472), (208, 1017163), (331, 639184), (364, 581236), (439, 481936), (662, 319592), (728, 290618), (878, 240968), (1324, 159796), (1456, 145309), (1756, 120484), (2317, 91312), (2648, 79898), (3073, 68848), (3512, 60242), (4303, 49168), (4634, 45656), (5296, 39949), (5707, 37072), (6146, 34424), (7024, 30121), (8606, 24584), (9268, 22828), (11414, 18536), (12292, 17212)]