18644795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 26234880

約数和(自身を除く): 7590085

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 487, 589, 1235, 2015, 2435, 2945, 6331, 7657, 9253, 15097, 31655, 38285, 46265, 75485, 120289, 196261, 286843, 601445, 981305, 1434215, 3728959, 18644795]

約数ペア:

[(1, 18644795), (5, 3728959), (13, 1434215), (19, 981305), (31, 601445), (65, 286843), (95, 196261), (155, 120289), (247, 75485), (403, 46265), (487, 38285), (589, 31655), (1235, 15097), (2015, 9253), (2435, 7657), (2945, 6331)]