520075280

素因数分解:

$2^4\times 5^1\times {\mathrm{6500941}}^1$

素因数の和:6500954

約数の個数: 20

約数和(自身を含む): 1209175212

約数和(自身を除く): 689099932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6500941, 13001882, 26003764, 32504705, 52007528, 65009410, 104015056, 130018820, 260037640, 520075280]

約数ペア:

[(1, 520075280), (2, 260037640), (4, 130018820), (5, 104015056), (8, 65009410), (10, 52007528), (16, 32504705), (20, 26003764), (40, 13001882), (80, 6500941)]