20148940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3347}}^1$

素因数の和:3406

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 29347892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3347, 6020, 6694, 13388, 16735, 23429, 33470, 46858, 66940, 93716, 117145, 143921, 234290, 287842, 468580, 575684, 719605, 1007447, 1439210, 2014894, 2878420, 4029788, 5037235, 10074470, 20148940]

約数ペア:

[(1, 20148940), (2, 10074470), (4, 5037235), (5, 4029788), (7, 2878420), (10, 2014894), (14, 1439210), (20, 1007447), (28, 719605), (35, 575684), (43, 468580), (70, 287842), (86, 234290), (140, 143921), (172, 117145), (215, 93716), (301, 66940), (430, 46858), (602, 33470), (860, 23429), (1204, 16735), (1505, 13388), (3010, 6694), (3347, 6020)]