7200880

素因数分解:

$2^4\times 5^1\times {\mathrm{90011}}^1$

素因数の和:90024

約数の個数: 20

約数和(自身を含む): 16742232

約数和(自身を除く): 9541352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 90011, 180022, 360044, 450055, 720088, 900110, 1440176, 1800220, 3600440, 7200880]

約数ペア:

[(1, 7200880), (2, 3600440), (4, 1800220), (5, 1440176), (8, 900110), (10, 720088), (16, 450055), (20, 360044), (40, 180022), (80, 90011)]