13056440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5351}}^1$

素因数の和:5423

約数の個数: 32

約数和(自身を含む): 29864160

約数和(自身を除く): 16807720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5351, 10702, 21404, 26755, 42808, 53510, 107020, 214040, 326411, 652822, 1305644, 1632055, 2611288, 3264110, 6528220, 13056440]

約数ペア:

[(1, 13056440), (2, 6528220), (4, 3264110), (5, 2611288), (8, 1632055), (10, 1305644), (20, 652822), (40, 326411), (61, 214040), (122, 107020), (244, 53510), (305, 42808), (488, 26755), (610, 21404), (1220, 10702), (2440, 5351)]