54777940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{751}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 131894784

約数和(自身を除く): 77116844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 751, 1042, 1502, 2084, 2605, 3004, 3647, 3755, 5210, 5257, 7294, 7510, 10420, 10514, 14588, 15020, 18235, 21028, 26285, 36470, 52570, 72940, 105140, 391271, 782542, 1565084, 1956355, 2738897, 3912710, 5477794, 7825420, 10955588, 13694485, 27388970, 54777940]

約数ペア:

[(1, 54777940), (2, 27388970), (4, 13694485), (5, 10955588), (7, 7825420), (10, 5477794), (14, 3912710), (20, 2738897), (28, 1956355), (35, 1565084), (70, 782542), (140, 391271), (521, 105140), (751, 72940), (1042, 52570), (1502, 36470), (2084, 26285), (2605, 21028), (3004, 18235), (3647, 15020), (3755, 14588), (5210, 10514), (5257, 10420), (7294, 7510)]