139606420

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{24841}}^1$

素因数の和:25131

約数の個数: 24

約数和(自身を含む): 294228648

約数和(自身を除く): 154622228

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 24841, 49682, 99364, 124205, 248410, 496820, 6980321, 13960642, 27921284, 34901605, 69803210, 139606420]

約数ペア:

[(1, 139606420), (2, 69803210), (4, 34901605), (5, 27921284), (10, 13960642), (20, 6980321), (281, 496820), (562, 248410), (1124, 124205), (1405, 99364), (2810, 49682), (5620, 24841)]