81632240

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10103}}^1$

素因数の和:10217

約数の個数: 40

約数和(自身を含む): 191693088

約数和(自身を除く): 110060848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 10103, 20206, 40412, 50515, 80824, 101030, 161648, 202060, 404120, 808240, 1020403, 2040806, 4081612, 5102015, 8163224, 10204030, 16326448, 20408060, 40816120, 81632240]

約数ペア:

[(1, 81632240), (2, 40816120), (4, 20408060), (5, 16326448), (8, 10204030), (10, 8163224), (16, 5102015), (20, 4081612), (40, 2040806), (80, 1020403), (101, 808240), (202, 404120), (404, 202060), (505, 161648), (808, 101030), (1010, 80824), (1616, 50515), (2020, 40412), (4040, 20206), (8080, 10103)]