20178247676

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1\times {\mathrm{2887}}^1$

素因数の和:3686

約数の個数: 48

約数和(自身を含む): 37007409600

約数和(自身を除く): 16829161924

約数列:

[1, 2, 4, 29, 58, 89, 116, 178, 356, 677, 1354, 2581, 2708, 2887, 5162, 5774, 10324, 11548, 19633, 39266, 60253, 78532, 83723, 120506, 167446, 241012, 256943, 334892, 513886, 1027772, 1747337, 1954499, 3494674, 3908998, 6989348, 7451347, 7817996, 14902694, 29805388, 56680471, 113360942, 173950411, 226721884, 347900822, 695801644, 5044561919, 10089123838, 20178247676]

約数ペア:

[(1, 20178247676), (2, 10089123838), (4, 5044561919), (29, 695801644), (58, 347900822), (89, 226721884), (116, 173950411), (178, 113360942), (356, 56680471), (677, 29805388), (1354, 14902694), (2581, 7817996), (2708, 7451347), (2887, 6989348), (5162, 3908998), (5774, 3494674), (10324, 1954499), (11548, 1747337), (19633, 1027772), (39266, 513886), (60253, 334892), (78532, 256943), (83723, 241012), (120506, 167446)]