684339440

素因数分解:

$2^4\times 5^1\times {\mathrm{8554243}}^1$

素因数の和:8554256

約数の個数: 20

約数和(自身を含む): 1591089384

約数和(自身を除く): 906749944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8554243, 17108486, 34216972, 42771215, 68433944, 85542430, 136867888, 171084860, 342169720, 684339440]

約数ペア:

[(1, 684339440), (2, 342169720), (4, 171084860), (5, 136867888), (8, 85542430), (10, 68433944), (16, 42771215), (20, 34216972), (40, 17108486), (80, 8554243)]