31489990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19559}}^1$

素因数の和:19596

約数の個数: 32

約数和(自身を含む): 67599360

約数和(自身を除く): 36109370

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 19559, 39118, 97795, 136913, 195590, 273826, 449857, 684565, 899714, 1369130, 2249285, 3148999, 4498570, 6297998, 15744995, 31489990]

約数ペア:

[(1, 31489990), (2, 15744995), (5, 6297998), (7, 4498570), (10, 3148999), (14, 2249285), (23, 1369130), (35, 899714), (46, 684565), (70, 449857), (115, 273826), (161, 195590), (230, 136913), (322, 97795), (805, 39118), (1610, 19559)]