812861270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{2417}}^1$

素因数の和:2649

約数の個数: 48

約数和(自身を含む): 1592978400

約数和(自身を除く): 780117130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 199, 338, 398, 845, 995, 1690, 1990, 2417, 2587, 4834, 5174, 12085, 12935, 24170, 25870, 31421, 33631, 62842, 67262, 157105, 168155, 314210, 336310, 408473, 480983, 816946, 961966, 2042365, 2404915, 4084730, 4809830, 6252779, 12505558, 31263895, 62527790, 81286127, 162572254, 406430635, 812861270]

約数ペア:

[(1, 812861270), (2, 406430635), (5, 162572254), (10, 81286127), (13, 62527790), (26, 31263895), (65, 12505558), (130, 6252779), (169, 4809830), (199, 4084730), (338, 2404915), (398, 2042365), (845, 961966), (995, 816946), (1690, 480983), (1990, 408473), (2417, 336310), (2587, 314210), (4834, 168155), (5174, 157105), (12085, 67262), (12935, 62842), (24170, 33631), (25870, 31421)]