128025425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 179988480

約数和(自身を除く): 51963055

約数列:

[1, 5, 11, 25, 55, 71, 79, 83, 275, 355, 395, 415, 781, 869, 913, 1775, 1975, 2075, 3905, 4345, 4565, 5609, 5893, 6557, 19525, 21725, 22825, 28045, 29465, 32785, 61699, 64823, 72127, 140225, 147325, 163925, 308495, 324115, 360635, 465547, 1542475, 1620575, 1803175, 2327735, 5121017, 11638675, 25605085, 128025425]

約数ペア:

[(1, 128025425), (5, 25605085), (11, 11638675), (25, 5121017), (55, 2327735), (71, 1803175), (79, 1620575), (83, 1542475), (275, 465547), (355, 360635), (395, 324115), (415, 308495), (781, 163925), (869, 147325), (913, 140225), (1775, 72127), (1975, 64823), (2075, 61699), (3905, 32785), (4345, 29465), (4565, 28045), (5609, 22825), (5893, 21725), (6557, 19525)]