130719040

素因数分解:

$2^6\times 5^1\times {\mathrm{408497}}^1$

素因数の和:408514

約数の個数: 28

約数和(自身を含む): 311275476

約数和(自身を除く): 180556436

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 408497, 816994, 1633988, 2042485, 3267976, 4084970, 6535952, 8169940, 13071904, 16339880, 26143808, 32679760, 65359520, 130719040]

約数ペア:

[(1, 130719040), (2, 65359520), (4, 32679760), (5, 26143808), (8, 16339880), (10, 13071904), (16, 8169940), (20, 6535952), (32, 4084970), (40, 3267976), (64, 2042485), (80, 1633988), (160, 816994), (320, 408497)]