19685240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21397}}^1$

素因数の和:21431

約数の個数: 32

約数和(自身を含む): 46219680

約数和(自身を除く): 26534440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21397, 42794, 85588, 106985, 171176, 213970, 427940, 492131, 855880, 984262, 1968524, 2460655, 3937048, 4921310, 9842620, 19685240]

約数ペア:

[(1, 19685240), (2, 9842620), (4, 4921310), (5, 3937048), (8, 2460655), (10, 1968524), (20, 984262), (23, 855880), (40, 492131), (46, 427940), (92, 213970), (115, 171176), (184, 106985), (230, 85588), (460, 42794), (920, 21397)]