28002020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26417}}^1$

素因数の和:26479

約数の個数: 24

約数和(自身を含む): 59916024

約数和(自身を除く): 31914004

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 26417, 52834, 105668, 132085, 264170, 528340, 1400101, 2800202, 5600404, 7000505, 14001010, 28002020]

約数ペア:

[(1, 28002020), (2, 14001010), (4, 7000505), (5, 5600404), (10, 2800202), (20, 1400101), (53, 528340), (106, 264170), (212, 132085), (265, 105668), (530, 52834), (1060, 26417)]