19995970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86939}}^1$

素因数の和:86969

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 17562110

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86939, 173878, 434695, 869390, 1999597, 3999194, 9997985, 19995970]

約数ペア:

[(1, 19995970), (2, 9997985), (5, 3999194), (10, 1999597), (23, 869390), (46, 434695), (115, 173878), (230, 86939)]