20726060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1297}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 47101824

約数和(自身を除く): 26375764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1297, 1598, 2594, 3196, 3995, 5188, 6485, 7990, 12970, 15980, 22049, 25940, 44098, 60959, 88196, 110245, 121918, 220490, 243836, 304795, 440980, 609590, 1036303, 1219180, 2072606, 4145212, 5181515, 10363030, 20726060]

約数ペア:

[(1, 20726060), (2, 10363030), (4, 5181515), (5, 4145212), (10, 2072606), (17, 1219180), (20, 1036303), (34, 609590), (47, 440980), (68, 304795), (85, 243836), (94, 220490), (170, 121918), (188, 110245), (235, 88196), (340, 60959), (470, 44098), (799, 25940), (940, 22049), (1297, 15980), (1598, 12970), (2594, 7990), (3196, 6485), (3995, 5188)]