18913290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1607

約数の個数: 64

約数和(自身を含む): 50889600

約数和(自身を除く): 31976310

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 1549, 2035, 2442, 3098, 4070, 4647, 6105, 7745, 9294, 12210, 15490, 17039, 23235, 34078, 46470, 51117, 57313, 85195, 102234, 114626, 170390, 171939, 255585, 286565, 343878, 511170, 573130, 630443, 859695, 1260886, 1719390, 1891329, 3152215, 3782658, 6304430, 9456645, 18913290]

約数ペア:

[(1, 18913290), (2, 9456645), (3, 6304430), (5, 3782658), (6, 3152215), (10, 1891329), (11, 1719390), (15, 1260886), (22, 859695), (30, 630443), (33, 573130), (37, 511170), (55, 343878), (66, 286565), (74, 255585), (110, 171939), (111, 170390), (165, 114626), (185, 102234), (222, 85195), (330, 57313), (370, 51117), (407, 46470), (555, 34078), (814, 23235), (1110, 17039), (1221, 15490), (1549, 12210), (2035, 9294), (2442, 7745), (3098, 6105), (4070, 4647)]