890295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 1666560

約数和(自身を除く): 776265

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 139, 183, 305, 417, 427, 695, 915, 973, 1281, 2085, 2135, 2919, 4865, 6405, 8479, 14595, 25437, 42395, 59353, 127185, 178059, 296765, 890295]

約数ペア:

[(1, 890295), (3, 296765), (5, 178059), (7, 127185), (15, 59353), (21, 42395), (35, 25437), (61, 14595), (105, 8479), (139, 6405), (183, 4865), (305, 2919), (417, 2135), (427, 2085), (695, 1281), (915, 973)]