5440280

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 12309840

約数和(自身を除く): 6869560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 491, 554, 982, 1108, 1385, 1964, 2216, 2455, 2770, 3928, 4910, 5540, 9820, 11080, 19640, 136007, 272014, 544028, 680035, 1088056, 1360070, 2720140, 5440280]

約数ペア:

[(1, 5440280), (2, 2720140), (4, 1360070), (5, 1088056), (8, 680035), (10, 544028), (20, 272014), (40, 136007), (277, 19640), (491, 11080), (554, 9820), (982, 5540), (1108, 4910), (1385, 3928), (1964, 2770), (2216, 2455)]