18885728

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20486752

約数列:

[1, 2, 4, 8, 16, 29, 32, 47, 58, 94, 116, 188, 232, 376, 433, 464, 752, 866, 928, 1363, 1504, 1732, 2726, 3464, 5452, 6928, 10904, 12557, 13856, 20351, 21808, 25114, 40702, 43616, 50228, 81404, 100456, 162808, 200912, 325616, 401824, 590179, 651232, 1180358, 2360716, 4721432, 9442864, 18885728]

約数ペア:

[(1, 18885728), (2, 9442864), (4, 4721432), (8, 2360716), (16, 1180358), (29, 651232), (32, 590179), (47, 401824), (58, 325616), (94, 200912), (116, 162808), (188, 100456), (232, 81404), (376, 50228), (433, 43616), (464, 40702), (752, 25114), (866, 21808), (928, 20351), (1363, 13856), (1504, 12557), (1732, 10904), (2726, 6928), (3464, 5452)]