20296876340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{389}}^1$

素因数の和:826

約数の個数: 144

約数和(自身を含む): 47481033600

約数和(自身を除く): 27184157260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 215, 260, 338, 359, 389, 430, 559, 676, 718, 778, 845, 860, 1118, 1436, 1556, 1690, 1795, 1945, 2236, 2795, 3380, 3590, 3890, 4667, 5057, 5590, 7180, 7267, 7780, 9334, 10114, 11180, 14534, 15437, 16727, 18668, 20228, 23335, 25285, 29068, 30874, 33454, 36335, 46670, 50570, 60671, 61748, 65741, 66908, 72670, 77185, 83635, 93340, 101140, 121342, 131482, 139651, 145340, 154370, 167270, 200681, 217451, 242684, 262964, 279302, 303355, 308740, 328705, 334540, 401362, 434902, 558604, 606710, 657410, 698255, 802724, 869804, 1003405, 1087255, 1213420, 1314820, 1396510, 1815463, 2006810, 2174510, 2608853, 2793020, 2826863, 3630926, 4013620, 4349020, 5217706, 5653726, 6004993, 7261852, 9077315, 10435412, 11307452, 12009986, 13044265, 14134315, 18154630, 23601019, 24019972, 26088530, 28268630, 30024965, 36309260, 47202038, 52177060, 56537260, 60049930, 78064909, 94404076, 118005095, 120099860, 156129818, 236010190, 312259636, 390324545, 472020380, 780649090, 1014843817, 1561298180, 2029687634, 4059375268, 5074219085, 10148438170, 20296876340]

約数ペア:

[(1, 20296876340), (2, 10148438170), (4, 5074219085), (5, 4059375268), (10, 2029687634), (13, 1561298180), (20, 1014843817), (26, 780649090), (43, 472020380), (52, 390324545), (65, 312259636), (86, 236010190), (130, 156129818), (169, 120099860), (172, 118005095), (215, 94404076), (260, 78064909), (338, 60049930), (359, 56537260), (389, 52177060), (430, 47202038), (559, 36309260), (676, 30024965), (718, 28268630), (778, 26088530), (845, 24019972), (860, 23601019), (1118, 18154630), (1436, 14134315), (1556, 13044265), (1690, 12009986), (1795, 11307452), (1945, 10435412), (2236, 9077315), (2795, 7261852), (3380, 6004993), (3590, 5653726), (3890, 5217706), (4667, 4349020), (5057, 4013620), (5590, 3630926), (7180, 2826863), (7267, 2793020), (7780, 2608853), (9334, 2174510), (10114, 2006810), (11180, 1815463), (14534, 1396510), (15437, 1314820), (16727, 1213420), (18668, 1087255), (20228, 1003405), (23335, 869804), (25285, 802724), (29068, 698255), (30874, 657410), (33454, 606710), (36335, 558604), (46670, 434902), (50570, 401362), (60671, 334540), (61748, 328705), (65741, 308740), (66908, 303355), (72670, 279302), (77185, 262964), (83635, 242684), (93340, 217451), (101140, 200681), (121342, 167270), (131482, 154370), (139651, 145340)]