68385820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 147026880

約数和(自身を除く): 78641060

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 356, 373, 412, 445, 515, 746, 890, 1030, 1492, 1780, 1865, 2060, 3730, 7460, 9167, 18334, 33197, 36668, 38419, 45835, 66394, 76838, 91670, 132788, 153676, 165985, 183340, 192095, 331970, 384190, 663940, 768380, 3419291, 6838582, 13677164, 17096455, 34192910, 68385820]

約数ペア:

[(1, 68385820), (2, 34192910), (4, 17096455), (5, 13677164), (10, 6838582), (20, 3419291), (89, 768380), (103, 663940), (178, 384190), (206, 331970), (356, 192095), (373, 183340), (412, 165985), (445, 153676), (515, 132788), (746, 91670), (890, 76838), (1030, 66394), (1492, 45835), (1780, 38419), (1865, 36668), (2060, 33197), (3730, 18334), (7460, 9167)]