161142680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{31721}}^1$

素因数の和:31859

約数の個数: 32

約数和(自身を含む): 365437440

約数和(自身を除く): 204294760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 31721, 63442, 126884, 158605, 253768, 317210, 634420, 1268840, 4028567, 8057134, 16114268, 20142835, 32228536, 40285670, 80571340, 161142680]

約数ペア:

[(1, 161142680), (2, 80571340), (4, 40285670), (5, 32228536), (8, 20142835), (10, 16114268), (20, 8057134), (40, 4028567), (127, 1268840), (254, 634420), (508, 317210), (635, 253768), (1016, 158605), (1270, 126884), (2540, 63442), (5080, 31721)]