18545464

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^2\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 40856400

約数和(自身を除く): 22310936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 89, 122, 178, 244, 356, 427, 488, 623, 712, 854, 1246, 1708, 2492, 3416, 3721, 4984, 5429, 7442, 10858, 14884, 21716, 26047, 29768, 38003, 43432, 52094, 76006, 104188, 152012, 208376, 304024, 331169, 662338, 1324676, 2318183, 2649352, 4636366, 9272732, 18545464]

約数ペア:

[(1, 18545464), (2, 9272732), (4, 4636366), (7, 2649352), (8, 2318183), (14, 1324676), (28, 662338), (56, 331169), (61, 304024), (89, 208376), (122, 152012), (178, 104188), (244, 76006), (356, 52094), (427, 43432), (488, 38003), (623, 29768), (712, 26047), (854, 21716), (1246, 14884), (1708, 10858), (2492, 7442), (3416, 5429), (3721, 4984)]