20488906256

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{46751}}^1$

素因数の和:46829

約数の個数: 120

約数和(自身を含む): 50888242944

約数和(自身を除く): 30399336688

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 49, 52, 56, 86, 91, 98, 104, 112, 172, 182, 196, 208, 301, 344, 364, 392, 559, 602, 637, 688, 728, 784, 1118, 1204, 1274, 1456, 2107, 2236, 2408, 2548, 3913, 4214, 4472, 4816, 5096, 7826, 8428, 8944, 10192, 15652, 16856, 27391, 31304, 33712, 46751, 54782, 62608, 93502, 109564, 187004, 219128, 327257, 374008, 438256, 607763, 654514, 748016, 1215526, 1309028, 2010293, 2290799, 2431052, 2618056, 4020586, 4254341, 4581598, 4862104, 5236112, 8041172, 8508682, 9163196, 9724208, 14072051, 16082344, 17017364, 18326392, 26133809, 28144102, 29780387, 32164688, 34034728, 36652784, 52267618, 56288204, 59560774, 68069456, 98504357, 104535236, 112576408, 119121548, 182936663, 197008714, 209070472, 225152816, 238243096, 365873326, 394017428, 418140944, 476486192, 731746652, 788034856, 1280556641, 1463493304, 1576069712, 2561113282, 2926986608, 5122226564, 10244453128, 20488906256]

約数ペア:

[(1, 20488906256), (2, 10244453128), (4, 5122226564), (7, 2926986608), (8, 2561113282), (13, 1576069712), (14, 1463493304), (16, 1280556641), (26, 788034856), (28, 731746652), (43, 476486192), (49, 418140944), (52, 394017428), (56, 365873326), (86, 238243096), (91, 225152816), (98, 209070472), (104, 197008714), (112, 182936663), (172, 119121548), (182, 112576408), (196, 104535236), (208, 98504357), (301, 68069456), (344, 59560774), (364, 56288204), (392, 52267618), (559, 36652784), (602, 34034728), (637, 32164688), (688, 29780387), (728, 28144102), (784, 26133809), (1118, 18326392), (1204, 17017364), (1274, 16082344), (1456, 14072051), (2107, 9724208), (2236, 9163196), (2408, 8508682), (2548, 8041172), (3913, 5236112), (4214, 4862104), (4472, 4581598), (4816, 4254341), (5096, 4020586), (7826, 2618056), (8428, 2431052), (8944, 2290799), (10192, 2010293), (15652, 1309028), (16856, 1215526), (27391, 748016), (31304, 654514), (33712, 607763), (46751, 438256), (54782, 374008), (62608, 327257), (93502, 219128), (109564, 187004)]