40509020

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5051}}^1$

素因数の和:5461

約数の個数: 24

約数和(自身を含む): 85297968

約数和(自身を除く): 44788948

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 5051, 8020, 10102, 20204, 25255, 50510, 101020, 2025451, 4050902, 8101804, 10127255, 20254510, 40509020]

約数ペア:

[(1, 40509020), (2, 20254510), (4, 10127255), (5, 8101804), (10, 4050902), (20, 2025451), (401, 101020), (802, 50510), (1604, 25255), (2005, 20204), (4010, 10102), (5051, 8020)]