64945970

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{72973}}^1$

素因数の和:73069

約数の個数: 16

約数和(自身を含む): 118217880

約数和(自身を除く): 53271910

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 72973, 145946, 364865, 729730, 6494597, 12989194, 32472985, 64945970]

約数ペア:

[(1, 64945970), (2, 32472985), (5, 12989194), (10, 6494597), (89, 729730), (178, 364865), (445, 145946), (890, 72973)]