165189505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 219752064

約数和(自身を除く): 54562559

約数列:

[1, 5, 13, 65, 67, 83, 335, 415, 457, 871, 1079, 2285, 4355, 5395, 5561, 5941, 27805, 29705, 30619, 37931, 72293, 153095, 189655, 361465, 398047, 493103, 1990235, 2465515, 2541377, 12706885, 33037901, 165189505]

約数ペア:

[(1, 165189505), (5, 33037901), (13, 12706885), (65, 2541377), (67, 2465515), (83, 1990235), (335, 493103), (415, 398047), (457, 361465), (871, 189655), (1079, 153095), (2285, 72293), (4355, 37931), (5395, 30619), (5561, 29705), (5941, 27805)]