20649291268

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1\times {\mathrm{3359}}^1$

素因数の和:3856

約数の個数: 48

約数和(自身を含む): 37454376960

約数和(自身を除く): 16805085692

約数列:

[1, 2, 4, 43, 86, 103, 172, 206, 347, 412, 694, 1388, 3359, 4429, 6718, 8858, 13436, 14921, 17716, 29842, 35741, 59684, 71482, 142964, 144437, 288874, 345977, 577748, 691954, 1165573, 1383908, 1536863, 2331146, 3073726, 4662292, 6147452, 14877011, 29754022, 50119639, 59508044, 100239278, 120054019, 200478556, 240108038, 480216076, 5162322817, 10324645634, 20649291268]

約数ペア:

[(1, 20649291268), (2, 10324645634), (4, 5162322817), (43, 480216076), (86, 240108038), (103, 200478556), (172, 120054019), (206, 100239278), (347, 59508044), (412, 50119639), (694, 29754022), (1388, 14877011), (3359, 6147452), (4429, 4662292), (6718, 3073726), (8858, 2331146), (13436, 1536863), (14921, 1383908), (17716, 1165573), (29842, 691954), (35741, 577748), (59684, 345977), (71482, 288874), (142964, 144437)]