40889180

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{1451}}^1$

素因数の和:2869

約数の個数: 24

約数和(自身を含む): 85987440

約数和(自身を除く): 45098260

約数列:

[1, 2, 4, 5, 10, 20, 1409, 1451, 2818, 2902, 5636, 5804, 7045, 7255, 14090, 14510, 28180, 29020, 2044459, 4088918, 8177836, 10222295, 20444590, 40889180]

約数ペア:

[(1, 40889180), (2, 20444590), (4, 10222295), (5, 8177836), (10, 4088918), (20, 2044459), (1409, 29020), (1451, 28180), (2818, 14510), (2902, 14090), (5636, 7255), (5804, 7045)]