20899687564

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{103}}^2$

素因数の和:289

約数の個数: 162

約数和(自身を含む): 47275826220

約数和(自身を除く): 26376138656

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 49, 76, 92, 98, 103, 133, 161, 196, 206, 266, 322, 412, 437, 529, 532, 644, 721, 874, 931, 1058, 1127, 1442, 1748, 1862, 1957, 2116, 2254, 2369, 2884, 3059, 3703, 3724, 3914, 4508, 4738, 5047, 6118, 7406, 7828, 9476, 10051, 10094, 10609, 12236, 13699, 14812, 16583, 20102, 20188, 21218, 21413, 25921, 27398, 33166, 40204, 42436, 42826, 45011, 51842, 54487, 54796, 66332, 70357, 74263, 85652, 90022, 95893, 103684, 108974, 116081, 140714, 148526, 180044, 191786, 201571, 217948, 232162, 244007, 281428, 297052, 315077, 381409, 383572, 403142, 464324, 488014, 492499, 519841, 630154, 762818, 806284, 976028, 984998, 1035253, 1039682, 1260308, 1410997, 1525636, 1708049, 1969996, 2070506, 2079364, 2205539, 2669863, 2821994, 3416098, 4141012, 4411078, 4636133, 5339726, 5612161, 5643988, 6832196, 7246771, 8822156, 9272266, 9876979, 10679452, 11224322, 11956343, 14493542, 18544532, 19753958, 22448644, 23912686, 28987084, 32452931, 39285127, 39507916, 47825372, 50727397, 64905862, 78570254, 101454794, 106631059, 129811724, 157140508, 202909588, 213262118, 227170517, 274995889, 426524236, 454341034, 549991778, 746417413, 908682068, 1099983556, 1492834826, 2985669652, 5224921891, 10449843782, 20899687564]

約数ペア:

[(1, 20899687564), (2, 10449843782), (4, 5224921891), (7, 2985669652), (14, 1492834826), (19, 1099983556), (23, 908682068), (28, 746417413), (38, 549991778), (46, 454341034), (49, 426524236), (76, 274995889), (92, 227170517), (98, 213262118), (103, 202909588), (133, 157140508), (161, 129811724), (196, 106631059), (206, 101454794), (266, 78570254), (322, 64905862), (412, 50727397), (437, 47825372), (529, 39507916), (532, 39285127), (644, 32452931), (721, 28987084), (874, 23912686), (931, 22448644), (1058, 19753958), (1127, 18544532), (1442, 14493542), (1748, 11956343), (1862, 11224322), (1957, 10679452), (2116, 9876979), (2254, 9272266), (2369, 8822156), (2884, 7246771), (3059, 6832196), (3703, 5643988), (3724, 5612161), (3914, 5339726), (4508, 4636133), (4738, 4411078), (5047, 4141012), (6118, 3416098), (7406, 2821994), (7828, 2669863), (9476, 2205539), (10051, 2079364), (10094, 2070506), (10609, 1969996), (12236, 1708049), (13699, 1525636), (14812, 1410997), (16583, 1260308), (20102, 1039682), (20188, 1035253), (21218, 984998), (21413, 976028), (25921, 806284), (27398, 762818), (33166, 630154), (40204, 519841), (42436, 492499), (42826, 488014), (45011, 464324), (51842, 403142), (54487, 383572), (54796, 381409), (66332, 315077), (70357, 297052), (74263, 281428), (85652, 244007), (90022, 232162), (95893, 217948), (103684, 201571), (108974, 191786), (116081, 180044), (140714, 148526)]