30540880

素因数分解:

$2^4\times 5^1\times {\mathrm{381761}}^1$

素因数の和:381774

約数の個数: 20

約数和(自身を含む): 71007732

約数和(自身を除く): 40466852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 381761, 763522, 1527044, 1908805, 3054088, 3817610, 6108176, 7635220, 15270440, 30540880]

約数ペア:

[(1, 30540880), (2, 15270440), (4, 7635220), (5, 6108176), (8, 3817610), (10, 3054088), (16, 1908805), (20, 1527044), (40, 763522), (80, 381761)]