128456415

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{25717}}^1$

素因数の和:25768

約数の個数: 32

約数和(自身を含む): 234548160

約数和(自身を除く): 106091745

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 25717, 77151, 128585, 231453, 385755, 694359, 951529, 1157265, 2854587, 3471795, 4757645, 8563761, 14272935, 25691283, 42818805, 128456415]

約数ペア:

[(1, 128456415), (3, 42818805), (5, 25691283), (9, 14272935), (15, 8563761), (27, 4757645), (37, 3471795), (45, 2854587), (111, 1157265), (135, 951529), (185, 694359), (333, 385755), (555, 231453), (999, 128585), (1665, 77151), (4995, 25717)]