77278920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{643991}}^1$

素因数の和:644005

約数の個数: 32

約数和(自身を含む): 231837120

約数和(自身を除く): 154558200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 643991, 1287982, 1931973, 2575964, 3219955, 3863946, 5151928, 6439910, 7727892, 9659865, 12879820, 15455784, 19319730, 25759640, 38639460, 77278920]

約数ペア:

[(1, 77278920), (2, 38639460), (3, 25759640), (4, 19319730), (5, 15455784), (6, 12879820), (8, 9659865), (10, 7727892), (12, 6439910), (15, 5151928), (20, 3863946), (24, 3219955), (30, 2575964), (40, 1931973), (60, 1287982), (120, 643991)]