404840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 945000

約数和(自身を除く): 540160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 349, 580, 698, 1160, 1396, 1745, 2792, 3490, 6980, 10121, 13960, 20242, 40484, 50605, 80968, 101210, 202420, 404840]

約数ペア:

[(1, 404840), (2, 202420), (4, 101210), (5, 80968), (8, 50605), (10, 40484), (20, 20242), (29, 13960), (40, 10121), (58, 6980), (116, 3490), (145, 2792), (232, 1745), (290, 1396), (349, 1160), (580, 698)]