64638290

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{18521}}^1$

素因数の和:18877

約数の個数: 16

約数和(自身を含む): 116688600

約数和(自身を除く): 52050310

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 18521, 37042, 92605, 185210, 6463829, 12927658, 32319145, 64638290]

約数ペア:

[(1, 64638290), (2, 32319145), (5, 12927658), (10, 6463829), (349, 185210), (698, 92605), (1745, 37042), (3490, 18521)]