19902652

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{179}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 46085760

約数和(自身を除く): 26183108

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 179, 209, 266, 308, 358, 361, 418, 532, 716, 722, 836, 1253, 1444, 1463, 1969, 2506, 2527, 2926, 3401, 3938, 3971, 5012, 5054, 5852, 6802, 7876, 7942, 10108, 13604, 13783, 15884, 23807, 27566, 27797, 37411, 47614, 55132, 55594, 64619, 74822, 95228, 111188, 129238, 149644, 258476, 261877, 452333, 523754, 710809, 904666, 1047508, 1421618, 1809332, 2843236, 4975663, 9951326, 19902652]

約数ペア:

[(1, 19902652), (2, 9951326), (4, 4975663), (7, 2843236), (11, 1809332), (14, 1421618), (19, 1047508), (22, 904666), (28, 710809), (38, 523754), (44, 452333), (76, 261877), (77, 258476), (133, 149644), (154, 129238), (179, 111188), (209, 95228), (266, 74822), (308, 64619), (358, 55594), (361, 55132), (418, 47614), (532, 37411), (716, 27797), (722, 27566), (836, 23807), (1253, 15884), (1444, 13783), (1463, 13604), (1969, 10108), (2506, 7942), (2527, 7876), (2926, 6802), (3401, 5852), (3938, 5054), (3971, 5012)]