18474820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10151}}^1$

素因数の和:10180

約数の個数: 48

約数和(自身を含む): 47755008

約数和(自身を除く): 29280188

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10151, 20302, 40604, 50755, 71057, 101510, 131963, 142114, 203020, 263926, 284228, 355285, 527852, 659815, 710570, 923741, 1319630, 1421140, 1847482, 2639260, 3694964, 4618705, 9237410, 18474820]

約数ペア:

[(1, 18474820), (2, 9237410), (4, 4618705), (5, 3694964), (7, 2639260), (10, 1847482), (13, 1421140), (14, 1319630), (20, 923741), (26, 710570), (28, 659815), (35, 527852), (52, 355285), (65, 284228), (70, 263926), (91, 203020), (130, 142114), (140, 131963), (182, 101510), (260, 71057), (364, 50755), (455, 40604), (910, 20302), (1820, 10151)]