20704896

素因数分解:

$2^7\times 3^4\times {\mathrm{1997}}^1$

素因数の和:2023

約数の個数: 80

約数和(自身を含む): 61648290

約数和(自身を除く): 40943394

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 1997, 2592, 3456, 3994, 5184, 5991, 7988, 10368, 11982, 15976, 17973, 23964, 31952, 35946, 47928, 53919, 63904, 71892, 95856, 107838, 127808, 143784, 161757, 191712, 215676, 255616, 287568, 323514, 383424, 431352, 575136, 647028, 766848, 862704, 1150272, 1294056, 1725408, 2300544, 2588112, 3450816, 5176224, 6901632, 10352448, 20704896]

約数ペア:

[(1, 20704896), (2, 10352448), (3, 6901632), (4, 5176224), (6, 3450816), (8, 2588112), (9, 2300544), (12, 1725408), (16, 1294056), (18, 1150272), (24, 862704), (27, 766848), (32, 647028), (36, 575136), (48, 431352), (54, 383424), (64, 323514), (72, 287568), (81, 255616), (96, 215676), (108, 191712), (128, 161757), (144, 143784), (162, 127808), (192, 107838), (216, 95856), (288, 71892), (324, 63904), (384, 53919), (432, 47928), (576, 35946), (648, 31952), (864, 23964), (1152, 17973), (1296, 15976), (1728, 11982), (1997, 10368), (2592, 7988), (3456, 5991), (3994, 5184)]