27779840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1973}}^1$

素因数の和:2005

約数の個数: 72

約数和(自身を含む): 72627408

約数和(自身を除く): 44847568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 1973, 2816, 3520, 3946, 7040, 7892, 9865, 14080, 15784, 19730, 21703, 31568, 39460, 43406, 63136, 78920, 86812, 108515, 126272, 157840, 173624, 217030, 252544, 315680, 347248, 434060, 505088, 631360, 694496, 868120, 1262720, 1388992, 1736240, 2525440, 2777984, 3472480, 5555968, 6944960, 13889920, 27779840]

約数ペア:

[(1, 27779840), (2, 13889920), (4, 6944960), (5, 5555968), (8, 3472480), (10, 2777984), (11, 2525440), (16, 1736240), (20, 1388992), (22, 1262720), (32, 868120), (40, 694496), (44, 631360), (55, 505088), (64, 434060), (80, 347248), (88, 315680), (110, 252544), (128, 217030), (160, 173624), (176, 157840), (220, 126272), (256, 108515), (320, 86812), (352, 78920), (440, 63136), (640, 43406), (704, 39460), (880, 31568), (1280, 21703), (1408, 19730), (1760, 15784), (1973, 14080), (2816, 9865), (3520, 7892), (3946, 7040)]