77202020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{551443}}^1$

素因数の和:551459

約数の個数: 24

約数和(自身を含む): 185285184

約数和(自身を除く): 108083164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 551443, 1102886, 2205772, 2757215, 3860101, 5514430, 7720202, 11028860, 15440404, 19300505, 38601010, 77202020]

約数ペア:

[(1, 77202020), (2, 38601010), (4, 19300505), (5, 15440404), (7, 11028860), (10, 7720202), (14, 5514430), (20, 3860101), (28, 2757215), (35, 2205772), (70, 1102886), (140, 551443)]