202028720

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{15493}}^1$

素因数の和:15669

約数の個数: 40

約数和(自身を含む): 472628976

約数和(自身を除く): 270600256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 15493, 30986, 61972, 77465, 123944, 154930, 247888, 309860, 619720, 1239440, 2525359, 5050718, 10101436, 12626795, 20202872, 25253590, 40405744, 50507180, 101014360, 202028720]

約数ペア:

[(1, 202028720), (2, 101014360), (4, 50507180), (5, 40405744), (8, 25253590), (10, 20202872), (16, 12626795), (20, 10101436), (40, 5050718), (80, 2525359), (163, 1239440), (326, 619720), (652, 309860), (815, 247888), (1304, 154930), (1630, 123944), (2608, 77465), (3260, 61972), (6520, 30986), (13040, 15493)]