28303660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18379}}^1$

素因数の和:18406

約数の個数: 48

約数和(自身を含む): 74108160

約数和(自身を除く): 45804500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18379, 36758, 73516, 91895, 128653, 183790, 202169, 257306, 367580, 404338, 514612, 643265, 808676, 1010845, 1286530, 1415183, 2021690, 2573060, 2830366, 4043380, 5660732, 7075915, 14151830, 28303660]

約数ペア:

[(1, 28303660), (2, 14151830), (4, 7075915), (5, 5660732), (7, 4043380), (10, 2830366), (11, 2573060), (14, 2021690), (20, 1415183), (22, 1286530), (28, 1010845), (35, 808676), (44, 643265), (55, 514612), (70, 404338), (77, 367580), (110, 257306), (140, 202169), (154, 183790), (220, 128653), (308, 91895), (385, 73516), (770, 36758), (1540, 18379)]