16700980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 36368640

約数和(自身を除く): 19667660

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 163, 188, 218, 235, 326, 436, 470, 545, 652, 815, 940, 1090, 1630, 2180, 3260, 5123, 7661, 10246, 15322, 17767, 20492, 25615, 30644, 35534, 38305, 51230, 71068, 76610, 88835, 102460, 153220, 177670, 355340, 835049, 1670098, 3340196, 4175245, 8350490, 16700980]

約数ペア:

[(1, 16700980), (2, 8350490), (4, 4175245), (5, 3340196), (10, 1670098), (20, 835049), (47, 355340), (94, 177670), (109, 153220), (163, 102460), (188, 88835), (218, 76610), (235, 71068), (326, 51230), (436, 38305), (470, 35534), (545, 30644), (652, 25615), (815, 20492), (940, 17767), (1090, 15322), (1630, 10246), (2180, 7661), (3260, 5123)]