About the Number

121426420

121426419 ← → 121426421

2進数表記:111001111001101000111110100

漢数字表記:一億二千百四十二万六千四百二十

素因数分解:

2 2 × 5 1 × 41 1 × 373 1 × 397 1

素因数の和:820
約数の個数: 48
約数和(自身を含む): 262574928
約数和(自身を除く): 141148508

約数列:
[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 373, 397, 410, 746, 794, 820, 1492, 1588, 1865, 1985, 3730, 3970, 7460, 7940, 15293, 16277, 30586, 32554, 61172, 65108, 76465, 81385, 148081, 152930, 162770, 296162, 305860, 325540, 592324, 740405, 1480810, 2961620, 6071321, 12142642, 24285284, 30356605, 60713210, 121426420]

約数ペア:
[(1, 121426420), (2, 60713210), (4, 30356605), (5, 24285284), (10, 12142642), (20, 6071321), (41, 2961620), (82, 1480810), (164, 740405), (205, 592324), (373, 325540), (397, 305860), (410, 296162), (746, 162770), (794, 152930), (820, 148081), (1492, 81385), (1588, 76465), (1865, 65108), (1985, 61172), (3730, 32554), (3970, 30586), (7460, 16277), (7940, 15293)]

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