8611000

素因数分解:

$2^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 20592000

約数和(自身を除く): 11981000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 109, 125, 158, 200, 218, 250, 316, 395, 436, 500, 545, 632, 790, 872, 1000, 1090, 1580, 1975, 2180, 2725, 3160, 3950, 4360, 5450, 7900, 8611, 9875, 10900, 13625, 15800, 17222, 19750, 21800, 27250, 34444, 39500, 43055, 54500, 68888, 79000, 86110, 109000, 172220, 215275, 344440, 430550, 861100, 1076375, 1722200, 2152750, 4305500, 8611000]

約数ペア:

[(1, 8611000), (2, 4305500), (4, 2152750), (5, 1722200), (8, 1076375), (10, 861100), (20, 430550), (25, 344440), (40, 215275), (50, 172220), (79, 109000), (100, 86110), (109, 79000), (125, 68888), (158, 54500), (200, 43055), (218, 39500), (250, 34444), (316, 27250), (395, 21800), (436, 19750), (500, 17222), (545, 15800), (632, 13625), (790, 10900), (872, 9875), (1000, 8611), (1090, 7900), (1580, 5450), (1975, 4360), (2180, 3950), (2725, 3160)]