81860156

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1381}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 171810240

約数和(自身を除く): 89950084

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 73, 116, 146, 203, 292, 406, 511, 812, 1022, 1381, 2044, 2117, 2762, 4234, 5524, 8468, 9667, 14819, 19334, 29638, 38668, 40049, 59276, 80098, 100813, 160196, 201626, 280343, 403252, 560686, 705691, 1121372, 1411382, 2822764, 2923577, 5847154, 11694308, 20465039, 40930078, 81860156]

約数ペア:

[(1, 81860156), (2, 40930078), (4, 20465039), (7, 11694308), (14, 5847154), (28, 2923577), (29, 2822764), (58, 1411382), (73, 1121372), (116, 705691), (146, 560686), (203, 403252), (292, 280343), (406, 201626), (511, 160196), (812, 100813), (1022, 80098), (1381, 59276), (2044, 40049), (2117, 38668), (2762, 29638), (4234, 19334), (5524, 14819), (8468, 9667)]