19903970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86539}}^1$

素因数の和:86569

約数の個数: 16

約数和(自身を含む): 37385280

約数和(自身を除く): 17481310

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86539, 173078, 432695, 865390, 1990397, 3980794, 9951985, 19903970]

約数ペア:

[(1, 19903970), (2, 9951985), (5, 3980794), (10, 1990397), (23, 865390), (46, 432695), (115, 173078), (230, 86539)]