18663720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3617}}^1$

素因数の和:3674

約数の個数: 64

約数和(自身を含む): 57309120

約数和(自身を除く): 38645400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3617, 5160, 7234, 10851, 14468, 18085, 21702, 28936, 36170, 43404, 54255, 72340, 86808, 108510, 144680, 155531, 217020, 311062, 434040, 466593, 622124, 777655, 933186, 1244248, 1555310, 1866372, 2332965, 3110620, 3732744, 4665930, 6221240, 9331860, 18663720]

約数ペア:

[(1, 18663720), (2, 9331860), (3, 6221240), (4, 4665930), (5, 3732744), (6, 3110620), (8, 2332965), (10, 1866372), (12, 1555310), (15, 1244248), (20, 933186), (24, 777655), (30, 622124), (40, 466593), (43, 434040), (60, 311062), (86, 217020), (120, 155531), (129, 144680), (172, 108510), (215, 86808), (258, 72340), (344, 54255), (430, 43404), (516, 36170), (645, 28936), (860, 21702), (1032, 18085), (1290, 14468), (1720, 10851), (2580, 7234), (3617, 5160)]