128194240

素因数分解:

$2^6\times 5^1\times {\mathrm{400607}}^1$

素因数の和:400624

約数の個数: 28

約数和(自身を含む): 305263296

約数和(自身を除く): 177069056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 400607, 801214, 1602428, 2003035, 3204856, 4006070, 6409712, 8012140, 12819424, 16024280, 25638848, 32048560, 64097120, 128194240]

約数ペア:

[(1, 128194240), (2, 64097120), (4, 32048560), (5, 25638848), (8, 16024280), (10, 12819424), (16, 8012140), (20, 6409712), (32, 4006070), (40, 3204856), (64, 2003035), (80, 1602428), (160, 801214), (320, 400607)]