18029900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 45830400

約数和(自身を除く): 27800500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 599, 602, 700, 860, 1075, 1198, 1204, 1505, 2150, 2396, 2995, 3010, 4193, 4300, 5990, 6020, 7525, 8386, 11980, 14975, 15050, 16772, 20965, 25757, 29950, 30100, 41930, 51514, 59900, 83860, 103028, 104825, 128785, 180299, 209650, 257570, 360598, 419300, 515140, 643925, 721196, 901495, 1287850, 1802990, 2575700, 3605980, 4507475, 9014950, 18029900]

約数ペア:

[(1, 18029900), (2, 9014950), (4, 4507475), (5, 3605980), (7, 2575700), (10, 1802990), (14, 1287850), (20, 901495), (25, 721196), (28, 643925), (35, 515140), (43, 419300), (50, 360598), (70, 257570), (86, 209650), (100, 180299), (140, 128785), (172, 104825), (175, 103028), (215, 83860), (301, 59900), (350, 51514), (430, 41930), (599, 30100), (602, 29950), (700, 25757), (860, 20965), (1075, 16772), (1198, 15050), (1204, 14975), (1505, 11980), (2150, 8386), (2396, 7525), (2995, 6020), (3010, 5990), (4193, 4300)]