77560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 200160

約数和(自身を除く): 122600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 277, 280, 554, 1108, 1385, 1939, 2216, 2770, 3878, 5540, 7756, 9695, 11080, 15512, 19390, 38780, 77560]

約数ペア:

[(1, 77560), (2, 38780), (4, 19390), (5, 15512), (7, 11080), (8, 9695), (10, 7756), (14, 5540), (20, 3878), (28, 2770), (35, 2216), (40, 1939), (56, 1385), (70, 1108), (140, 554), (277, 280)]