9701000

素因数分解:

$2^3\times 5^3\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 23166000

約数和(自身を除く): 13465000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 109, 125, 178, 200, 218, 250, 356, 436, 445, 500, 545, 712, 872, 890, 1000, 1090, 1780, 2180, 2225, 2725, 3560, 4360, 4450, 5450, 8900, 9701, 10900, 11125, 13625, 17800, 19402, 21800, 22250, 27250, 38804, 44500, 48505, 54500, 77608, 89000, 97010, 109000, 194020, 242525, 388040, 485050, 970100, 1212625, 1940200, 2425250, 4850500, 9701000]

約数ペア:

[(1, 9701000), (2, 4850500), (4, 2425250), (5, 1940200), (8, 1212625), (10, 970100), (20, 485050), (25, 388040), (40, 242525), (50, 194020), (89, 109000), (100, 97010), (109, 89000), (125, 77608), (178, 54500), (200, 48505), (218, 44500), (250, 38804), (356, 27250), (436, 22250), (445, 21800), (500, 19402), (545, 17800), (712, 13625), (872, 11125), (890, 10900), (1000, 9701), (1090, 8900), (1780, 5450), (2180, 4450), (2225, 4360), (2725, 3560)]