127964840

素因数分解:

$2^3\times 5^1\times {\mathrm{3199121}}^1$

素因数の和:3199132

約数の個数: 16

約数和(自身を含む): 287920980

約数和(自身を除く): 159956140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3199121, 6398242, 12796484, 15995605, 25592968, 31991210, 63982420, 127964840]

約数ペア:

[(1, 127964840), (2, 63982420), (4, 31991210), (5, 25592968), (8, 15995605), (10, 12796484), (20, 6398242), (40, 3199121)]