20689872

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1$

素因数の和:600

約数の個数: 80

約数和(自身を含む): 61662720

約数和(自身を除く): 40972848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 139, 168, 278, 336, 417, 443, 556, 834, 886, 973, 1112, 1329, 1668, 1772, 1946, 2224, 2658, 2919, 3101, 3336, 3544, 3892, 5316, 5838, 6202, 6672, 7088, 7784, 9303, 10632, 11676, 12404, 15568, 18606, 21264, 23352, 24808, 37212, 46704, 49616, 61577, 74424, 123154, 148848, 184731, 246308, 369462, 431039, 492616, 738924, 862078, 985232, 1293117, 1477848, 1724156, 2586234, 2955696, 3448312, 5172468, 6896624, 10344936, 20689872]

約数ペア:

[(1, 20689872), (2, 10344936), (3, 6896624), (4, 5172468), (6, 3448312), (7, 2955696), (8, 2586234), (12, 1724156), (14, 1477848), (16, 1293117), (21, 985232), (24, 862078), (28, 738924), (42, 492616), (48, 431039), (56, 369462), (84, 246308), (112, 184731), (139, 148848), (168, 123154), (278, 74424), (336, 61577), (417, 49616), (443, 46704), (556, 37212), (834, 24808), (886, 23352), (973, 21264), (1112, 18606), (1329, 15568), (1668, 12404), (1772, 11676), (1946, 10632), (2224, 9303), (2658, 7784), (2919, 7088), (3101, 6672), (3336, 6202), (3544, 5838), (3892, 5316)]