19622739760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{126631}}^1$

素因数の和:126806

約数の個数: 80

約数和(自身を含む): 49462459200

約数和(自身を除く): 29839719440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 520, 596, 745, 1040, 1192, 1490, 1937, 2384, 2980, 3874, 5960, 7748, 9685, 11920, 15496, 19370, 30992, 38740, 77480, 126631, 154960, 253262, 506524, 633155, 1013048, 1266310, 1646203, 2026096, 2532620, 3292406, 5065240, 6584812, 8231015, 10130480, 13169624, 16462030, 18868019, 26339248, 32924060, 37736038, 65848120, 75472076, 94340095, 131696240, 150944152, 188680190, 245284247, 301888304, 377360380, 490568494, 754720760, 981136988, 1226421235, 1509441520, 1962273976, 2452842470, 3924547952, 4905684940, 9811369880, 19622739760]

約数ペア:

[(1, 19622739760), (2, 9811369880), (4, 4905684940), (5, 3924547952), (8, 2452842470), (10, 1962273976), (13, 1509441520), (16, 1226421235), (20, 981136988), (26, 754720760), (40, 490568494), (52, 377360380), (65, 301888304), (80, 245284247), (104, 188680190), (130, 150944152), (149, 131696240), (208, 94340095), (260, 75472076), (298, 65848120), (520, 37736038), (596, 32924060), (745, 26339248), (1040, 18868019), (1192, 16462030), (1490, 13169624), (1937, 10130480), (2384, 8231015), (2980, 6584812), (3874, 5065240), (5960, 3292406), (7748, 2532620), (9685, 2026096), (11920, 1646203), (15496, 1266310), (19370, 1013048), (30992, 633155), (38740, 506524), (77480, 253262), (126631, 154960)]