220160840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{33767}}^1$

素因数の和:33941

約数の個数: 32

約数和(自身を含む): 498415680

約数和(自身を除く): 278254840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 33767, 67534, 135068, 168835, 270136, 337670, 675340, 1350680, 5504021, 11008042, 22016084, 27520105, 44032168, 55040210, 110080420, 220160840]

約数ペア:

[(1, 220160840), (2, 110080420), (4, 55040210), (5, 44032168), (8, 27520105), (10, 22016084), (20, 11008042), (40, 5504021), (163, 1350680), (326, 675340), (652, 337670), (815, 270136), (1304, 168835), (1630, 135068), (3260, 67534), (6520, 33767)]