128157990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{21467}}^1$

素因数の和:21676

約数の個数: 32

約数和(自身を含む): 309139200

約数和(自身を除く): 180981210

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 199, 398, 597, 995, 1194, 1990, 2985, 5970, 21467, 42934, 64401, 107335, 128802, 214670, 322005, 644010, 4271933, 8543866, 12815799, 21359665, 25631598, 42719330, 64078995, 128157990]

約数ペア:

[(1, 128157990), (2, 64078995), (3, 42719330), (5, 25631598), (6, 21359665), (10, 12815799), (15, 8543866), (30, 4271933), (199, 644010), (398, 322005), (597, 214670), (995, 128802), (1194, 107335), (1990, 64401), (2985, 42934), (5970, 21467)]