131309990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{81559}}^1$

素因数の和:81596

約数の個数: 32

約数和(自身を含む): 281871360

約数和(自身を除く): 150561370

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 81559, 163118, 407795, 570913, 815590, 1141826, 1875857, 2854565, 3751714, 5709130, 9379285, 13130999, 18758570, 26261998, 65654995, 131309990]

約数ペア:

[(1, 131309990), (2, 65654995), (5, 26261998), (7, 18758570), (10, 13130999), (14, 9379285), (23, 5709130), (35, 3751714), (46, 2854565), (70, 1875857), (115, 1141826), (161, 815590), (230, 570913), (322, 407795), (805, 163118), (1610, 81559)]