165720980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{1151}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 364621824

約数和(自身を除く): 198900844

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 313, 460, 626, 1151, 1252, 1565, 2302, 3130, 4604, 5755, 6260, 7199, 11510, 14398, 23020, 26473, 28796, 35995, 52946, 71990, 105892, 132365, 143980, 264730, 360263, 529460, 720526, 1441052, 1801315, 3602630, 7205260, 8286049, 16572098, 33144196, 41430245, 82860490, 165720980]

約数ペア:

[(1, 165720980), (2, 82860490), (4, 41430245), (5, 33144196), (10, 16572098), (20, 8286049), (23, 7205260), (46, 3602630), (92, 1801315), (115, 1441052), (230, 720526), (313, 529460), (460, 360263), (626, 264730), (1151, 143980), (1252, 132365), (1565, 105892), (2302, 71990), (3130, 52946), (4604, 35995), (5755, 28796), (6260, 26473), (7199, 23020), (11510, 14398)]