20763428

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 24394972

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 1259, 2356, 2518, 4123, 5036, 8246, 8813, 16492, 17626, 23921, 35252, 39029, 47842, 78058, 95684, 156116, 167447, 273203, 334894, 546406, 669788, 741551, 1092812, 1483102, 2966204, 5190857, 10381714, 20763428]

約数ペア:

[(1, 20763428), (2, 10381714), (4, 5190857), (7, 2966204), (14, 1483102), (19, 1092812), (28, 741551), (31, 669788), (38, 546406), (62, 334894), (76, 273203), (124, 167447), (133, 156116), (217, 95684), (266, 78058), (434, 47842), (532, 39029), (589, 35252), (868, 23921), (1178, 17626), (1259, 16492), (2356, 8813), (2518, 8246), (4123, 5036)]