64221955

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 90979200

約数和(自身を除く): 26757245

約数列:

[1, 5, 7, 35, 53, 89, 265, 371, 389, 445, 623, 1855, 1945, 2723, 3115, 4717, 13615, 20617, 23585, 33019, 34621, 103085, 144319, 165095, 173105, 242347, 721595, 1211735, 1834913, 9174565, 12844391, 64221955]

約数ペア:

[(1, 64221955), (5, 12844391), (7, 9174565), (35, 1834913), (53, 1211735), (89, 721595), (265, 242347), (371, 173105), (389, 165095), (445, 144319), (623, 103085), (1855, 34621), (1945, 33019), (2723, 23585), (3115, 20617), (4717, 13615)]