12428720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3613}}^1$

素因数の和:3669

約数の個数: 40

約数和(自身を含む): 29576976

約数和(自身を除く): 17148256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3613, 7226, 14452, 18065, 28904, 36130, 57808, 72260, 144520, 155359, 289040, 310718, 621436, 776795, 1242872, 1553590, 2485744, 3107180, 6214360, 12428720]

約数ペア:

[(1, 12428720), (2, 6214360), (4, 3107180), (5, 2485744), (8, 1553590), (10, 1242872), (16, 776795), (20, 621436), (40, 310718), (43, 289040), (80, 155359), (86, 144520), (172, 72260), (215, 57808), (344, 36130), (430, 28904), (688, 18065), (860, 14452), (1720, 7226), (3440, 3613)]