64638980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{461707}}^1$

素因数の和:461723

約数の個数: 24

約数和(自身を含む): 155133888

約数和(自身を除く): 90494908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461707, 923414, 1846828, 2308535, 3231949, 4617070, 6463898, 9234140, 12927796, 16159745, 32319490, 64638980]

約数ペア:

[(1, 64638980), (2, 32319490), (4, 16159745), (5, 12927796), (7, 9234140), (10, 6463898), (14, 4617070), (20, 3231949), (28, 2308535), (35, 1846828), (70, 923414), (140, 461707)]