About the Number

121011490

121011489 ← → 121011491

2進数表記:111001101100111110100100010

漢数字表記:一億二千百一万千四百九十

素因数分解:

2 1 × 5 1 × 29 2 × 14389 1

素因数の和:14454
約数の個数: 24
約数和(自身を含む): 225606420
約数和(自身を除く): 104594930

約数列:
[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 4205, 8410, 14389, 28778, 71945, 143890, 417281, 834562, 2086405, 4172810, 12101149, 24202298, 60505745, 121011490]

約数ペア:
[(1, 121011490), (2, 60505745), (5, 24202298), (10, 12101149), (29, 4172810), (58, 2086405), (145, 834562), (290, 417281), (841, 143890), (1682, 71945), (4205, 28778), (8410, 14389)]

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