278457425

素因数分解:

$5^2\times {\mathrm{113}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 350643480

約数和(自身を除く): 72186055

約数列:

[1, 5, 25, 113, 241, 409, 565, 1205, 2045, 2825, 6025, 10225, 27233, 46217, 98569, 136165, 231085, 492845, 680825, 1155425, 2464225, 11138297, 55691485, 278457425]

約数ペア:

[(1, 278457425), (5, 55691485), (25, 11138297), (113, 2464225), (241, 1155425), (409, 680825), (565, 492845), (1205, 231085), (2045, 136165), (2825, 98569), (6025, 46217), (10225, 27233)]