39642140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27917}}^1$

素因数の和:27997

約数の個数: 24

約数和(自身を含む): 84424032

約数和(自身を除く): 44781892

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27917, 55834, 111668, 139585, 279170, 558340, 1982107, 3964214, 7928428, 9910535, 19821070, 39642140]

約数ペア:

[(1, 39642140), (2, 19821070), (4, 9910535), (5, 7928428), (10, 3964214), (20, 1982107), (71, 558340), (142, 279170), (284, 139585), (355, 111668), (710, 55834), (1420, 27917)]