28679930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 54639360

約数和(自身を除く): 25959430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 542, 557, 1114, 1355, 2710, 2785, 5149, 5570, 10298, 10583, 21166, 25745, 51490, 52915, 105830, 150947, 301894, 754735, 1509470, 2867993, 5735986, 14339965, 28679930]

約数ペア:

[(1, 28679930), (2, 14339965), (5, 5735986), (10, 2867993), (19, 1509470), (38, 754735), (95, 301894), (190, 150947), (271, 105830), (542, 52915), (557, 51490), (1114, 25745), (1355, 21166), (2710, 10583), (2785, 10298), (5149, 5570)]