128540945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 171884160

約数和(自身を除く): 43343215

約数列:

[1, 5, 13, 41, 65, 139, 205, 347, 533, 695, 1735, 1807, 2665, 4511, 5699, 9035, 14227, 22555, 28495, 48233, 71135, 74087, 184951, 241165, 370435, 627029, 924755, 1977553, 3135145, 9887765, 25708189, 128540945]

約数ペア:

[(1, 128540945), (5, 25708189), (13, 9887765), (41, 3135145), (65, 1977553), (139, 924755), (205, 627029), (347, 370435), (533, 241165), (695, 184951), (1735, 74087), (1807, 71135), (2665, 48233), (4511, 28495), (5699, 22555), (9035, 14227)]