19236580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7949}}^1$

素因数の和:7980

約数の個数: 36

約数和(自身を含む): 44408700

約数和(自身を除く): 25172120

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7949, 15898, 31796, 39745, 79490, 87439, 158980, 174878, 349756, 437195, 874390, 961829, 1748780, 1923658, 3847316, 4809145, 9618290, 19236580]

約数ペア:

[(1, 19236580), (2, 9618290), (4, 4809145), (5, 3847316), (10, 1923658), (11, 1748780), (20, 961829), (22, 874390), (44, 437195), (55, 349756), (110, 174878), (121, 158980), (220, 87439), (242, 79490), (484, 39745), (605, 31796), (1210, 15898), (2420, 7949)]