81133997590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197887799}}^1$

素因数の和:197887847

約数の個数: 16

約数和(自身を含む): 149603176800

約数和(自身を除く): 68469179210

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 197887799, 395775598, 989438995, 1978877990, 8113399759, 16226799518, 40566998795, 81133997590]

約数ペア:

[(1, 81133997590), (2, 40566998795), (5, 16226799518), (10, 8113399759), (41, 1978877990), (82, 989438995), (205, 395775598), (410, 197887799)]