129097040

素因数分解:

$2^4\times 5^1\times {\mathrm{1613713}}^1$

素因数の和:1613726

約数の個数: 20

約数和(自身を含む): 300150804

約数和(自身を除く): 171053764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1613713, 3227426, 6454852, 8068565, 12909704, 16137130, 25819408, 32274260, 64548520, 129097040]

約数ペア:

[(1, 129097040), (2, 64548520), (4, 32274260), (5, 25819408), (8, 16137130), (10, 12909704), (16, 8068565), (20, 6454852), (40, 3227426), (80, 1613713)]