289076720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{33151}}^1$

素因数の和:33273

約数の個数: 40

約数和(自身を含む): 678289920

約数和(自身を除く): 389213200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 33151, 66302, 132604, 165755, 265208, 331510, 530416, 663020, 1326040, 2652080, 3613459, 7226918, 14453836, 18067295, 28907672, 36134590, 57815344, 72269180, 144538360, 289076720]

約数ペア:

[(1, 289076720), (2, 144538360), (4, 72269180), (5, 57815344), (8, 36134590), (10, 28907672), (16, 18067295), (20, 14453836), (40, 7226918), (80, 3613459), (109, 2652080), (218, 1326040), (436, 663020), (545, 530416), (872, 331510), (1090, 265208), (1744, 165755), (2180, 132604), (4360, 66302), (8720, 33151)]