64711960

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{4583}}^1$

素因数の和:4947

約数の個数: 32

約数和(自身を含む): 146046240

約数和(自身を除く): 81334280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 4583, 7060, 9166, 14120, 18332, 22915, 36664, 45830, 91660, 183320, 1617799, 3235598, 6471196, 8088995, 12942392, 16177990, 32355980, 64711960]

約数ペア:

[(1, 64711960), (2, 32355980), (4, 16177990), (5, 12942392), (8, 8088995), (10, 6471196), (20, 3235598), (40, 1617799), (353, 183320), (706, 91660), (1412, 45830), (1765, 36664), (2824, 22915), (3530, 18332), (4583, 14120), (7060, 9166)]