1990393174

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 3773371392

約数和(自身を除く): 1782978218

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 167, 193, 334, 386, 401, 802, 1169, 1351, 1837, 2123, 2338, 2702, 2807, 3674, 4246, 4411, 5614, 8822, 12859, 14861, 25718, 29722, 30877, 32231, 61754, 64462, 66967, 77393, 133934, 154786, 225617, 354541, 451234, 468769, 541751, 709082, 736637, 851323, 937538, 1083502, 1473274, 1702646, 2481787, 4963574, 5156459, 5959261, 10312918, 11918522, 12924631, 25849262, 90472417, 142170941, 180944834, 284341882, 995196587, 1990393174]

約数ペア:

[(1, 1990393174), (2, 995196587), (7, 284341882), (11, 180944834), (14, 142170941), (22, 90472417), (77, 25849262), (154, 12924631), (167, 11918522), (193, 10312918), (334, 5959261), (386, 5156459), (401, 4963574), (802, 2481787), (1169, 1702646), (1351, 1473274), (1837, 1083502), (2123, 937538), (2338, 851323), (2702, 736637), (2807, 709082), (3674, 541751), (4246, 468769), (4411, 451234), (5614, 354541), (8822, 225617), (12859, 154786), (14861, 133934), (25718, 77393), (29722, 66967), (30877, 64462), (32231, 61754)]