1722200

素因数分解:

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

素因数の和:204

約数の個数: 48

約数和(自身を含む): 4092000

約数和(自身を除く): 2369800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 109, 158, 200, 218, 316, 395, 436, 545, 632, 790, 872, 1090, 1580, 1975, 2180, 2725, 3160, 3950, 4360, 5450, 7900, 8611, 10900, 15800, 17222, 21800, 34444, 43055, 68888, 86110, 172220, 215275, 344440, 430550, 861100, 1722200]

約数ペア:

[(1, 1722200), (2, 861100), (4, 430550), (5, 344440), (8, 215275), (10, 172220), (20, 86110), (25, 68888), (40, 43055), (50, 34444), (79, 21800), (100, 17222), (109, 15800), (158, 10900), (200, 8611), (218, 7900), (316, 5450), (395, 4360), (436, 3950), (545, 3160), (632, 2725), (790, 2180), (872, 1975), (1090, 1580)]