389321855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{421}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 518107968

約数和(自身を除く): 128786113

約数列:

[1, 5, 13, 41, 65, 205, 347, 421, 533, 1735, 2105, 2665, 4511, 5473, 14227, 17261, 22555, 27365, 71135, 86305, 146087, 184951, 224393, 730435, 924755, 1121965, 1899131, 5989567, 9495655, 29947835, 77864371, 389321855]

約数ペア:

[(1, 389321855), (5, 77864371), (13, 29947835), (41, 9495655), (65, 5989567), (205, 1899131), (347, 1121965), (421, 924755), (533, 730435), (1735, 224393), (2105, 184951), (2665, 146087), (4511, 86305), (5473, 71135), (14227, 27365), (17261, 22555)]