64704260

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{3931}}^1$

素因数の和:4763

約数の個数: 24

約数和(自身を含む): 136078656

約数和(自身を除く): 71374396

約数列:

[1, 2, 4, 5, 10, 20, 823, 1646, 3292, 3931, 4115, 7862, 8230, 15724, 16460, 19655, 39310, 78620, 3235213, 6470426, 12940852, 16176065, 32352130, 64704260]

約数ペア:

[(1, 64704260), (2, 32352130), (4, 16176065), (5, 12940852), (10, 6470426), (20, 3235213), (823, 78620), (1646, 39310), (3292, 19655), (3931, 16460), (4115, 15724), (7862, 8230)]