268348535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4243}}^1$

素因数の和:4407

約数の個数: 32

約数和(自身を含む): 399275520

約数和(自身を除く): 130926985

約数列:

[1, 5, 7, 13, 35, 65, 91, 139, 455, 695, 973, 1807, 4243, 4865, 9035, 12649, 21215, 29701, 55159, 63245, 148505, 275795, 386113, 589777, 1930565, 2948885, 4128439, 7667101, 20642195, 38335505, 53669707, 268348535]

約数ペア:

[(1, 268348535), (5, 53669707), (7, 38335505), (13, 20642195), (35, 7667101), (65, 4128439), (91, 2948885), (139, 1930565), (455, 589777), (695, 386113), (973, 275795), (1807, 148505), (4243, 63245), (4865, 55159), (9035, 29701), (12649, 21215)]