161707825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 225628416

約数和(自身を除く): 63920591

約数列:

[1, 5, 17, 23, 25, 71, 85, 115, 233, 355, 391, 425, 575, 1165, 1207, 1633, 1775, 1955, 3961, 5359, 5825, 6035, 8165, 9775, 16543, 19805, 26795, 27761, 30175, 40825, 82715, 91103, 99025, 133975, 138805, 281231, 380489, 413575, 455515, 694025, 1406155, 1902445, 2277575, 6468313, 7030775, 9512225, 32341565, 161707825]

約数ペア:

[(1, 161707825), (5, 32341565), (17, 9512225), (23, 7030775), (25, 6468313), (71, 2277575), (85, 1902445), (115, 1406155), (233, 694025), (355, 455515), (391, 413575), (425, 380489), (575, 281231), (1165, 138805), (1207, 133975), (1633, 99025), (1775, 91103), (1955, 82715), (3961, 40825), (5359, 30175), (5825, 27761), (6035, 26795), (8165, 19805), (9775, 16543)]