18397240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19997}}^1$

素因数の和:20031

約数の個数: 32

約数和(自身を含む): 43195680

約数和(自身を除く): 24798440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19997, 39994, 79988, 99985, 159976, 199970, 399940, 459931, 799880, 919862, 1839724, 2299655, 3679448, 4599310, 9198620, 18397240]

約数ペア:

[(1, 18397240), (2, 9198620), (4, 4599310), (5, 3679448), (8, 2299655), (10, 1839724), (20, 919862), (23, 799880), (40, 459931), (46, 399940), (92, 199970), (115, 159976), (184, 99985), (230, 79988), (460, 39994), (920, 19997)]