20188560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 160

約数和(自身を含む): 73066752

約数和(自身を除く): 52878192

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 197, 210, 240, 244, 280, 305, 336, 366, 394, 420, 427, 488, 560, 591, 610, 732, 788, 840, 854, 915, 976, 985, 1182, 1220, 1281, 1379, 1464, 1576, 1680, 1708, 1830, 1970, 2135, 2364, 2440, 2562, 2758, 2928, 2955, 3152, 3416, 3660, 3940, 4137, 4270, 4728, 4880, 5124, 5516, 5910, 6405, 6832, 6895, 7320, 7880, 8274, 8540, 9456, 10248, 11032, 11820, 12017, 12810, 13790, 14640, 15760, 16548, 17080, 20496, 20685, 22064, 23640, 24034, 25620, 27580, 33096, 34160, 36051, 41370, 47280, 48068, 51240, 55160, 60085, 66192, 72102, 82740, 84119, 96136, 102480, 110320, 120170, 144204, 165480, 168238, 180255, 192272, 240340, 252357, 288408, 330960, 336476, 360510, 420595, 480680, 504714, 576816, 672952, 721020, 841190, 961360, 1009428, 1261785, 1345904, 1442040, 1682380, 2018856, 2523570, 2884080, 3364760, 4037712, 5047140, 6729520, 10094280, 20188560]

約数ペア:

[(1, 20188560), (2, 10094280), (3, 6729520), (4, 5047140), (5, 4037712), (6, 3364760), (7, 2884080), (8, 2523570), (10, 2018856), (12, 1682380), (14, 1442040), (15, 1345904), (16, 1261785), (20, 1009428), (21, 961360), (24, 841190), (28, 721020), (30, 672952), (35, 576816), (40, 504714), (42, 480680), (48, 420595), (56, 360510), (60, 336476), (61, 330960), (70, 288408), (80, 252357), (84, 240340), (105, 192272), (112, 180255), (120, 168238), (122, 165480), (140, 144204), (168, 120170), (183, 110320), (197, 102480), (210, 96136), (240, 84119), (244, 82740), (280, 72102), (305, 66192), (336, 60085), (366, 55160), (394, 51240), (420, 48068), (427, 47280), (488, 41370), (560, 36051), (591, 34160), (610, 33096), (732, 27580), (788, 25620), (840, 24034), (854, 23640), (915, 22064), (976, 20685), (985, 20496), (1182, 17080), (1220, 16548), (1281, 15760), (1379, 14640), (1464, 13790), (1576, 12810), (1680, 12017), (1708, 11820), (1830, 11032), (1970, 10248), (2135, 9456), (2364, 8540), (2440, 8274), (2562, 7880), (2758, 7320), (2928, 6895), (2955, 6832), (3152, 6405), (3416, 5910), (3660, 5516), (3940, 5124), (4137, 4880), (4270, 4728)]