128910575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 177176160

約数和(自身を除く): 48265585

約数列:

[1, 5, 17, 25, 53, 59, 85, 97, 265, 295, 425, 485, 901, 1003, 1325, 1475, 1649, 2425, 3127, 4505, 5015, 5141, 5723, 8245, 15635, 22525, 25075, 25705, 28615, 41225, 53159, 78175, 87397, 97291, 128525, 143075, 265795, 303319, 436985, 486455, 1328975, 1516595, 2184925, 2432275, 5156423, 7582975, 25782115, 128910575]

約数ペア:

[(1, 128910575), (5, 25782115), (17, 7582975), (25, 5156423), (53, 2432275), (59, 2184925), (85, 1516595), (97, 1328975), (265, 486455), (295, 436985), (425, 303319), (485, 265795), (901, 143075), (1003, 128525), (1325, 97291), (1475, 87397), (1649, 78175), (2425, 53159), (3127, 41225), (4505, 28615), (5015, 25705), (5141, 25075), (5723, 22525), (8245, 15635)]