52780280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{751}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 136442880

約数和(自身を除く): 83662600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 751, 1004, 1255, 1502, 1757, 2008, 2510, 3004, 3514, 3755, 5020, 5257, 6008, 7028, 7510, 8785, 10040, 10514, 14056, 15020, 17570, 21028, 26285, 30040, 35140, 42056, 52570, 70280, 105140, 188501, 210280, 377002, 754004, 942505, 1319507, 1508008, 1885010, 2639014, 3770020, 5278028, 6597535, 7540040, 10556056, 13195070, 26390140, 52780280]

約数ペア:

[(1, 52780280), (2, 26390140), (4, 13195070), (5, 10556056), (7, 7540040), (8, 6597535), (10, 5278028), (14, 3770020), (20, 2639014), (28, 1885010), (35, 1508008), (40, 1319507), (56, 942505), (70, 754004), (140, 377002), (251, 210280), (280, 188501), (502, 105140), (751, 70280), (1004, 52570), (1255, 42056), (1502, 35140), (1757, 30040), (2008, 26285), (2510, 21028), (3004, 17570), (3514, 15020), (3755, 14056), (5020, 10514), (5257, 10040), (6008, 8785), (7028, 7510)]