400970

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:505

約数の個数: 16

約数和(自身を含む): 730728

約数和(自身を除く): 329758

約数列:

[1, 2, 5, 10, 101, 202, 397, 505, 794, 1010, 1985, 3970, 40097, 80194, 200485, 400970]

約数ペア:

[(1, 400970), (2, 200485), (5, 80194), (10, 40097), (101, 3970), (202, 1985), (397, 1010), (505, 794)]