65278520

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{4261}}^1$

素因数の和:4655

約数の個数: 32

約数和(自身を含む): 147294720

約数和(自身を除く): 82016200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 4261, 7660, 8522, 15320, 17044, 21305, 34088, 42610, 85220, 170440, 1631963, 3263926, 6527852, 8159815, 13055704, 16319630, 32639260, 65278520]

約数ペア:

[(1, 65278520), (2, 32639260), (4, 16319630), (5, 13055704), (8, 8159815), (10, 6527852), (20, 3263926), (40, 1631963), (383, 170440), (766, 85220), (1532, 42610), (1915, 34088), (3064, 21305), (3830, 17044), (4261, 15320), (7660, 8522)]