20487890306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{439}}^1\times {\mathrm{6211}}^1$

素因数の和:6699

約数の個数: 48

約数和(自身を含む): 35242912320

約数和(自身を除く): 14755022014

約数列:

[1, 2, 13, 17, 26, 34, 221, 289, 439, 442, 578, 878, 3757, 5707, 6211, 7463, 7514, 11414, 12422, 14926, 80743, 97019, 105587, 126871, 161486, 194038, 211174, 253742, 1372631, 1649323, 1794979, 2726629, 2745262, 3298646, 3589958, 5453258, 23334727, 35446177, 46352693, 46669454, 70892354, 92705386, 602585009, 787995781, 1205170018, 1575991562, 10243945153, 20487890306]

約数ペア:

[(1, 20487890306), (2, 10243945153), (13, 1575991562), (17, 1205170018), (26, 787995781), (34, 602585009), (221, 92705386), (289, 70892354), (439, 46669454), (442, 46352693), (578, 35446177), (878, 23334727), (3757, 5453258), (5707, 3589958), (6211, 3298646), (7463, 2745262), (7514, 2726629), (11414, 1794979), (12422, 1649323), (14926, 1372631), (80743, 253742), (97019, 211174), (105587, 194038), (126871, 161486)]