4399400

素因数分解:

$2^3\times 5^2\times {\mathrm{21997}}^1$

素因数の和:22013

約数の個数: 24

約数和(自身を含む): 10229070

約数和(自身を除く): 5829670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 21997, 43994, 87988, 109985, 175976, 219970, 439940, 549925, 879880, 1099850, 2199700, 4399400]

約数ペア:

[(1, 4399400), (2, 2199700), (4, 1099850), (5, 879880), (8, 549925), (10, 439940), (20, 219970), (25, 175976), (40, 109985), (50, 87988), (100, 43994), (200, 21997)]