7280720

素因数分解:

$2^4\times 5^1\times {\mathrm{91009}}^1$

素因数の和:91022

約数の個数: 20

約数和(自身を含む): 16927860

約数和(自身を除く): 9647140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 91009, 182018, 364036, 455045, 728072, 910090, 1456144, 1820180, 3640360, 7280720]

約数ペア:

[(1, 7280720), (2, 3640360), (4, 1820180), (5, 1456144), (8, 910090), (10, 728072), (16, 455045), (20, 364036), (40, 182018), (80, 91009)]