13600040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7961

約数の個数: 32

約数和(自身を含む): 31315680

約数和(自身を除く): 17715640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7907, 15814, 31628, 39535, 63256, 79070, 158140, 316280, 340001, 680002, 1360004, 1700005, 2720008, 3400010, 6800020, 13600040]

約数ペア:

[(1, 13600040), (2, 6800020), (4, 3400010), (5, 2720008), (8, 1700005), (10, 1360004), (20, 680002), (40, 340001), (43, 316280), (86, 158140), (172, 79070), (215, 63256), (344, 39535), (430, 31628), (860, 15814), (1720, 7907)]