40672820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 88291728

約数和(自身を除く): 47618908

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 193, 205, 257, 386, 410, 514, 772, 820, 965, 1028, 1285, 1930, 2570, 3860, 5140, 7913, 10537, 15826, 21074, 31652, 39565, 42148, 49601, 52685, 79130, 99202, 105370, 158260, 198404, 210740, 248005, 496010, 992020, 2033641, 4067282, 8134564, 10168205, 20336410, 40672820]

約数ペア:

[(1, 40672820), (2, 20336410), (4, 10168205), (5, 8134564), (10, 4067282), (20, 2033641), (41, 992020), (82, 496010), (164, 248005), (193, 210740), (205, 198404), (257, 158260), (386, 105370), (410, 99202), (514, 79130), (772, 52685), (820, 49601), (965, 42148), (1028, 39565), (1285, 31652), (1930, 21074), (2570, 15826), (3860, 10537), (5140, 7913)]