20168022784

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{865729}}^1$

素因数の和:865765

約数の個数: 72

約数和(自身を含む): 49547459360

約数和(自身を除く): 29379436576

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 1456, 1664, 1792, 2912, 3328, 5824, 11648, 23296, 865729, 1731458, 3462916, 6060103, 6925832, 11254477, 12120206, 13851664, 22508954, 24240412, 27703328, 45017908, 48480824, 55406656, 78781339, 90035816, 96961648, 110813312, 157562678, 180071632, 193923296, 221626624, 315125356, 360143264, 387846592, 630250712, 720286528, 775693184, 1260501424, 1440573056, 1551386368, 2521002848, 2881146112, 5042005696, 10084011392, 20168022784]

約数ペア:

[(1, 20168022784), (2, 10084011392), (4, 5042005696), (7, 2881146112), (8, 2521002848), (13, 1551386368), (14, 1440573056), (16, 1260501424), (26, 775693184), (28, 720286528), (32, 630250712), (52, 387846592), (56, 360143264), (64, 315125356), (91, 221626624), (104, 193923296), (112, 180071632), (128, 157562678), (182, 110813312), (208, 96961648), (224, 90035816), (256, 78781339), (364, 55406656), (416, 48480824), (448, 45017908), (728, 27703328), (832, 24240412), (896, 22508954), (1456, 13851664), (1664, 12120206), (1792, 11254477), (2912, 6925832), (3328, 6060103), (5824, 3462916), (11648, 1731458), (23296, 865729)]