20128644

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13003}}^1$

素因数の和:13056

約数の個数: 36

約数和(自身を含む): 52068016

約数和(自身を除く): 31939372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13003, 26006, 39009, 52012, 78018, 117027, 156036, 234054, 468108, 559129, 1118258, 1677387, 2236516, 3354774, 5032161, 6709548, 10064322, 20128644]

約数ペア:

[(1, 20128644), (2, 10064322), (3, 6709548), (4, 5032161), (6, 3354774), (9, 2236516), (12, 1677387), (18, 1118258), (36, 559129), (43, 468108), (86, 234054), (129, 156036), (172, 117027), (258, 78018), (387, 52012), (516, 39009), (774, 26006), (1548, 13003)]