64647760

素因数分解:

$2^4\times 5^1\times {\mathrm{808097}}^1$

素因数の和:808110

約数の個数: 20

約数和(自身を含む): 150306228

約数和(自身を除く): 85658468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 808097, 1616194, 3232388, 4040485, 6464776, 8080970, 12929552, 16161940, 32323880, 64647760]

約数ペア:

[(1, 64647760), (2, 32323880), (4, 16161940), (5, 12929552), (8, 8080970), (10, 6464776), (16, 4040485), (20, 3232388), (40, 1616194), (80, 808097)]