20309660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145069}}^1$

素因数の和:145085

約数の個数: 24

約数和(自身を含む): 48743520

約数和(自身を除く): 28433860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145069, 290138, 580276, 725345, 1015483, 1450690, 2030966, 2901380, 4061932, 5077415, 10154830, 20309660]

約数ペア:

[(1, 20309660), (2, 10154830), (4, 5077415), (5, 4061932), (7, 2901380), (10, 2030966), (14, 1450690), (20, 1015483), (28, 725345), (35, 580276), (70, 290138), (140, 145069)]