81137140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82793}}^1$

素因数の和:82816

約数の個数: 36

約数和(自身を含む): 198208836

約数和(自身を除く): 117071696

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82793, 165586, 331172, 413965, 579551, 827930, 1159102, 1655860, 2318204, 2897755, 4056857, 5795510, 8113714, 11591020, 16227428, 20284285, 40568570, 81137140]

約数ペア:

[(1, 81137140), (2, 40568570), (4, 20284285), (5, 16227428), (7, 11591020), (10, 8113714), (14, 5795510), (20, 4056857), (28, 2897755), (35, 2318204), (49, 1655860), (70, 1159102), (98, 827930), (140, 579551), (196, 413965), (245, 331172), (490, 165586), (980, 82793)]