19004840

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{853}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 42887880

約数和(自身を除く): 23883040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 853, 1114, 1706, 2228, 2785, 3412, 4265, 4456, 5570, 6824, 8530, 11140, 17060, 22280, 34120, 475121, 950242, 1900484, 2375605, 3800968, 4751210, 9502420, 19004840]

約数ペア:

[(1, 19004840), (2, 9502420), (4, 4751210), (5, 3800968), (8, 2375605), (10, 1900484), (20, 950242), (40, 475121), (557, 34120), (853, 22280), (1114, 17060), (1706, 11140), (2228, 8530), (2785, 6824), (3412, 5570), (4265, 4456)]