179620520

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{12721}}^1$

素因数の和:13085

約数の個数: 32

約数和(自身を含む): 405322920

約数和(自身を除く): 225702400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 12721, 14120, 25442, 50884, 63605, 101768, 127210, 254420, 508840, 4490513, 8981026, 17962052, 22452565, 35924104, 44905130, 89810260, 179620520]

約数ペア:

[(1, 179620520), (2, 89810260), (4, 44905130), (5, 35924104), (8, 22452565), (10, 17962052), (20, 8981026), (40, 4490513), (353, 508840), (706, 254420), (1412, 127210), (1765, 101768), (2824, 63605), (3530, 50884), (7060, 25442), (12721, 14120)]