81639310

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{80831}}^1$

素因数の和:80939

約数の個数: 16

約数和(自身を含む): 148407552

約数和(自身を除く): 66768242

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 80831, 161662, 404155, 808310, 8163931, 16327862, 40819655, 81639310]

約数ペア:

[(1, 81639310), (2, 40819655), (5, 16327862), (10, 8163931), (101, 808310), (202, 404155), (505, 161662), (1010, 80831)]