20452861520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{20507}}^1$

素因数の和:20677

約数の個数: 160

約数和(自身を含む): 58956726528

約数和(自身を除く): 38503865008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 137, 140, 182, 208, 260, 274, 280, 364, 455, 520, 548, 560, 685, 728, 910, 959, 1040, 1096, 1370, 1456, 1781, 1820, 1918, 2192, 2740, 3562, 3640, 3836, 4795, 5480, 7124, 7280, 7672, 8905, 9590, 10960, 12467, 14248, 15344, 17810, 19180, 20507, 24934, 28496, 35620, 38360, 41014, 49868, 62335, 71240, 76720, 82028, 99736, 102535, 124670, 142480, 143549, 164056, 199472, 205070, 249340, 266591, 287098, 328112, 410140, 498680, 533182, 574196, 717745, 820280, 997360, 1066364, 1148392, 1332955, 1435490, 1640560, 1866137, 2132728, 2296784, 2665910, 2809459, 2870980, 3732274, 4265456, 5331820, 5618918, 5741960, 7464548, 9330685, 10663640, 11237836, 11483920, 14047295, 14929096, 18661370, 19666213, 21327280, 22475672, 28094590, 29858192, 36522967, 37322740, 39332426, 44951344, 56189180, 73045934, 74645480, 78664852, 98331065, 112378360, 146091868, 149290960, 157329704, 182614835, 196662130, 224756720, 255660769, 292183736, 314659408, 365229670, 393324260, 511321538, 584367472, 730459340, 786648520, 1022643076, 1278303845, 1460918680, 1573297040, 2045286152, 2556607690, 2921837360, 4090572304, 5113215380, 10226430760, 20452861520]

約数ペア:

[(1, 20452861520), (2, 10226430760), (4, 5113215380), (5, 4090572304), (7, 2921837360), (8, 2556607690), (10, 2045286152), (13, 1573297040), (14, 1460918680), (16, 1278303845), (20, 1022643076), (26, 786648520), (28, 730459340), (35, 584367472), (40, 511321538), (52, 393324260), (56, 365229670), (65, 314659408), (70, 292183736), (80, 255660769), (91, 224756720), (104, 196662130), (112, 182614835), (130, 157329704), (137, 149290960), (140, 146091868), (182, 112378360), (208, 98331065), (260, 78664852), (274, 74645480), (280, 73045934), (364, 56189180), (455, 44951344), (520, 39332426), (548, 37322740), (560, 36522967), (685, 29858192), (728, 28094590), (910, 22475672), (959, 21327280), (1040, 19666213), (1096, 18661370), (1370, 14929096), (1456, 14047295), (1781, 11483920), (1820, 11237836), (1918, 10663640), (2192, 9330685), (2740, 7464548), (3562, 5741960), (3640, 5618918), (3836, 5331820), (4795, 4265456), (5480, 3732274), (7124, 2870980), (7280, 2809459), (7672, 2665910), (8905, 2296784), (9590, 2132728), (10960, 1866137), (12467, 1640560), (14248, 1435490), (15344, 1332955), (17810, 1148392), (19180, 1066364), (20507, 997360), (24934, 820280), (28496, 717745), (35620, 574196), (38360, 533182), (41014, 498680), (49868, 410140), (62335, 328112), (71240, 287098), (76720, 266591), (82028, 249340), (99736, 205070), (102535, 199472), (124670, 164056), (142480, 143549)]