20147346940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143909621}}^1$

素因数の和:143909637

約数の個数: 24

約数和(自身を含む): 48353632992

約数和(自身を除く): 28206286052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143909621, 287819242, 575638484, 719548105, 1007367347, 1439096210, 2014734694, 2878192420, 4029469388, 5036836735, 10073673470, 20147346940]

約数ペア:

[(1, 20147346940), (2, 10073673470), (4, 5036836735), (5, 4029469388), (7, 2878192420), (10, 2014734694), (14, 1439096210), (20, 1007367347), (28, 719548105), (35, 575638484), (70, 287819242), (140, 143909621)]