129076280

素因数分解:

$2^3\times 5^1\times {\mathrm{3226907}}^1$

素因数の和:3226918

約数の個数: 16

約数和(自身を含む): 290421720

約数和(自身を除く): 161345440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3226907, 6453814, 12907628, 16134535, 25815256, 32269070, 64538140, 129076280]

約数ペア:

[(1, 129076280), (2, 64538140), (4, 32269070), (5, 25815256), (8, 16134535), (10, 12907628), (20, 6453814), (40, 3226907)]