40675880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20753}}^1$

素因数の和:20778

約数の個数: 48

約数和(自身を含む): 106468020

約数和(自身を除く): 65792140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20753, 41506, 83012, 103765, 145271, 166024, 207530, 290542, 415060, 581084, 726355, 830120, 1016897, 1162168, 1452710, 2033794, 2905420, 4067588, 5084485, 5810840, 8135176, 10168970, 20337940, 40675880]

約数ペア:

[(1, 40675880), (2, 20337940), (4, 10168970), (5, 8135176), (7, 5810840), (8, 5084485), (10, 4067588), (14, 2905420), (20, 2033794), (28, 1452710), (35, 1162168), (40, 1016897), (49, 830120), (56, 726355), (70, 581084), (98, 415060), (140, 290542), (196, 207530), (245, 166024), (280, 145271), (392, 103765), (490, 83012), (980, 41506), (1960, 20753)]