65206040

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6343}}^1$

素因数の和:6611

約数の個数: 32

約数和(自身を含む): 147307680

約数和(自身を除く): 82101640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6343, 10280, 12686, 25372, 31715, 50744, 63430, 126860, 253720, 1630151, 3260302, 6520604, 8150755, 13041208, 16301510, 32603020, 65206040]

約数ペア:

[(1, 65206040), (2, 32603020), (4, 16301510), (5, 13041208), (8, 8150755), (10, 6520604), (20, 3260302), (40, 1630151), (257, 253720), (514, 126860), (1028, 63430), (1285, 50744), (2056, 31715), (2570, 25372), (5140, 12686), (6343, 10280)]