20302940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145021}}^1$

素因数の和:145037

約数の個数: 24

約数和(自身を含む): 48727392

約数和(自身を除く): 28424452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145021, 290042, 580084, 725105, 1015147, 1450210, 2030294, 2900420, 4060588, 5075735, 10151470, 20302940]

約数ペア:

[(1, 20302940), (2, 10151470), (4, 5075735), (5, 4060588), (7, 2900420), (10, 2030294), (14, 1450210), (20, 1015147), (28, 725105), (35, 580084), (70, 290042), (140, 145021)]