128441805

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1663}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 217251840

約数和(自身を除く): 88810035

約数列:

[1, 3, 5, 15, 19, 57, 95, 271, 285, 813, 1355, 1663, 4065, 4989, 5149, 8315, 15447, 24945, 25745, 31597, 77235, 94791, 157985, 450673, 473955, 1352019, 2253365, 6760095, 8562787, 25688361, 42813935, 128441805]

約数ペア:

[(1, 128441805), (3, 42813935), (5, 25688361), (15, 8562787), (19, 6760095), (57, 2253365), (95, 1352019), (271, 473955), (285, 450673), (813, 157985), (1355, 94791), (1663, 77235), (4065, 31597), (4989, 25745), (5149, 24945), (8315, 15447)]