20571476510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{65579}}^1$

素因数の和:65745

約数の個数: 64

約数和(自身を含む): 42306969600

約数和(自身を除く): 21735493090

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 127, 130, 190, 247, 254, 494, 635, 1235, 1270, 1651, 2413, 2470, 3302, 4826, 8255, 12065, 16510, 24130, 31369, 62738, 65579, 131158, 156845, 313690, 327895, 655790, 852527, 1246001, 1705054, 2492002, 4262635, 6230005, 8328533, 8525270, 12460010, 16198013, 16657066, 32396026, 41642665, 80990065, 83285330, 108270929, 158242127, 161980130, 216541858, 316484254, 541354645, 791210635, 1082709290, 1582421270, 2057147651, 4114295302, 10285738255, 20571476510]

約数ペア:

[(1, 20571476510), (2, 10285738255), (5, 4114295302), (10, 2057147651), (13, 1582421270), (19, 1082709290), (26, 791210635), (38, 541354645), (65, 316484254), (95, 216541858), (127, 161980130), (130, 158242127), (190, 108270929), (247, 83285330), (254, 80990065), (494, 41642665), (635, 32396026), (1235, 16657066), (1270, 16198013), (1651, 12460010), (2413, 8525270), (2470, 8328533), (3302, 6230005), (4826, 4262635), (8255, 2492002), (12065, 1705054), (16510, 1246001), (24130, 852527), (31369, 655790), (62738, 327895), (65579, 313690), (131158, 156845)]