20399778848

素因数分解:

$2^5\times {\mathrm{193}}^1\times {\mathrm{641}}^1\times {\mathrm{5153}}^1$

素因数の和:5997

約数の個数: 48

約数和(自身を含む): 40440984696

約数和(自身を除く): 20041205848

約数列:

[1, 2, 4, 8, 16, 32, 193, 386, 641, 772, 1282, 1544, 2564, 3088, 5128, 5153, 6176, 10256, 10306, 20512, 20612, 41224, 82448, 123713, 164896, 247426, 494852, 989704, 994529, 1979408, 1989058, 3303073, 3958816, 3978116, 6606146, 7956232, 13212292, 15912464, 26424584, 31824928, 52849168, 105698336, 637493089, 1274986178, 2549972356, 5099944712, 10199889424, 20399778848]

約数ペア:

[(1, 20399778848), (2, 10199889424), (4, 5099944712), (8, 2549972356), (16, 1274986178), (32, 637493089), (193, 105698336), (386, 52849168), (641, 31824928), (772, 26424584), (1282, 15912464), (1544, 13212292), (2564, 7956232), (3088, 6606146), (5128, 3978116), (5153, 3958816), (6176, 3303073), (10256, 1989058), (10306, 1979408), (20512, 994529), (20612, 989704), (41224, 494852), (82448, 247426), (123713, 164896)]