127998880

素因数分解:

$2^5\times 5^1\times {\mathrm{799993}}^1$

素因数の和:800008

約数の個数: 24

約数和(自身を含む): 302397732

約数和(自身を除く): 174398852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 799993, 1599986, 3199972, 3999965, 6399944, 7999930, 12799888, 15999860, 25599776, 31999720, 63999440, 127998880]

約数ペア:

[(1, 127998880), (2, 63999440), (4, 31999720), (5, 25599776), (8, 15999860), (10, 12799888), (16, 7999930), (20, 6399944), (32, 3999965), (40, 3199972), (80, 1599986), (160, 799993)]