28693340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110359}}^1$

素因数の和:110381

約数の個数: 24

約数和(自身を含む): 64891680

約数和(自身を除く): 36198340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110359, 220718, 441436, 551795, 1103590, 1434667, 2207180, 2869334, 5738668, 7173335, 14346670, 28693340]

約数ペア:

[(1, 28693340), (2, 14346670), (4, 7173335), (5, 5738668), (10, 2869334), (13, 2207180), (20, 1434667), (26, 1103590), (52, 551795), (65, 441436), (130, 220718), (260, 110359)]