393280

素因数分解:

$2^6\times 5^1\times {\mathrm{1229}}^1$

素因数の和:1246

約数の個数: 28

約数和(自身を含む): 937260

約数和(自身を除く): 543980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1229, 2458, 4916, 6145, 9832, 12290, 19664, 24580, 39328, 49160, 78656, 98320, 196640, 393280]

約数ペア:

[(1, 393280), (2, 196640), (4, 98320), (5, 78656), (8, 49160), (10, 39328), (16, 24580), (20, 19664), (32, 12290), (40, 9832), (64, 6145), (80, 4916), (160, 2458), (320, 1229)]