138445180

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{7129}}^1$

素因数の和:8109

約数の個数: 24

約数和(自身を含む): 291075120

約数和(自身を除く): 152629940

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3884, 4855, 7129, 9710, 14258, 19420, 28516, 35645, 71290, 142580, 6922259, 13844518, 27689036, 34611295, 69222590, 138445180]

約数ペア:

[(1, 138445180), (2, 69222590), (4, 34611295), (5, 27689036), (10, 13844518), (20, 6922259), (971, 142580), (1942, 71290), (3884, 35645), (4855, 28516), (7129, 19420), (9710, 14258)]