19055575

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 31069440

約数和(自身を除く): 12013865

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 521, 665, 1045, 1463, 1925, 2605, 3325, 3647, 5225, 5731, 7315, 9899, 13025, 18235, 28655, 36575, 40117, 49495, 69293, 91175, 108889, 143275, 200585, 247475, 346465, 544445, 762223, 1002925, 1732325, 2722225, 3811115, 19055575]

約数ペア:

[(1, 19055575), (5, 3811115), (7, 2722225), (11, 1732325), (19, 1002925), (25, 762223), (35, 544445), (55, 346465), (77, 247475), (95, 200585), (133, 143275), (175, 108889), (209, 91175), (275, 69293), (385, 49495), (475, 40117), (521, 36575), (665, 28655), (1045, 18235), (1463, 13025), (1925, 9899), (2605, 7315), (3325, 5731), (3647, 5225)]