201787480

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{30949}}^1$

素因数の和:31123

約数の個数: 32

約数和(自身を含む): 456822000

約数和(自身を除く): 255034520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 30949, 61898, 123796, 154745, 247592, 309490, 618980, 1237960, 5044687, 10089374, 20178748, 25223435, 40357496, 50446870, 100893740, 201787480]

約数ペア:

[(1, 201787480), (2, 100893740), (4, 50446870), (5, 40357496), (8, 25223435), (10, 20178748), (20, 10089374), (40, 5044687), (163, 1237960), (326, 618980), (652, 309490), (815, 247592), (1304, 154745), (1630, 123796), (3260, 61898), (6520, 30949)]