219060940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1564721}}^1$

素因数の和:1564737

約数の個数: 24

約数和(自身を含む): 525746592

約数和(自身を除く): 306685652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1564721, 3129442, 6258884, 7823605, 10953047, 15647210, 21906094, 31294420, 43812188, 54765235, 109530470, 219060940]

約数ペア:

[(1, 219060940), (2, 109530470), (4, 54765235), (5, 43812188), (7, 31294420), (10, 21906094), (14, 15647210), (20, 10953047), (28, 7823605), (35, 6258884), (70, 3129442), (140, 1564721)]