197402000

素因数分解:

$2^4\times 5^3\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1221

約数の個数: 80

約数和(自身を含む): 483116400

約数和(自身を除く): 285714400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 125, 178, 200, 250, 356, 400, 445, 500, 712, 890, 1000, 1109, 1424, 1780, 2000, 2218, 2225, 3560, 4436, 4450, 5545, 7120, 8872, 8900, 11090, 11125, 17744, 17800, 22180, 22250, 27725, 35600, 44360, 44500, 55450, 88720, 89000, 98701, 110900, 138625, 178000, 197402, 221800, 277250, 394804, 443600, 493505, 554500, 789608, 987010, 1109000, 1579216, 1974020, 2218000, 2467525, 3948040, 4935050, 7896080, 9870100, 12337625, 19740200, 24675250, 39480400, 49350500, 98701000, 197402000]

約数ペア:

[(1, 197402000), (2, 98701000), (4, 49350500), (5, 39480400), (8, 24675250), (10, 19740200), (16, 12337625), (20, 9870100), (25, 7896080), (40, 4935050), (50, 3948040), (80, 2467525), (89, 2218000), (100, 1974020), (125, 1579216), (178, 1109000), (200, 987010), (250, 789608), (356, 554500), (400, 493505), (445, 443600), (500, 394804), (712, 277250), (890, 221800), (1000, 197402), (1109, 178000), (1424, 138625), (1780, 110900), (2000, 98701), (2218, 89000), (2225, 88720), (3560, 55450), (4436, 44500), (4450, 44360), (5545, 35600), (7120, 27725), (8872, 22250), (8900, 22180), (11090, 17800), (11125, 17744)]