257584995

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:697

約数の個数: 64

約数和(自身を含む): 485222400

約数和(自身を除く): 227637405

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 233, 285, 431, 513, 699, 855, 1165, 1293, 2097, 2155, 2565, 3495, 3879, 4427, 6291, 6465, 8189, 10485, 11637, 13281, 19395, 22135, 24567, 31455, 39843, 40945, 58185, 66405, 73701, 100423, 119529, 122835, 199215, 221103, 301269, 368505, 502115, 597645, 903807, 1105515, 1506345, 1908037, 2711421, 4519035, 5724111, 9540185, 13557105, 17172333, 28620555, 51516999, 85861665, 257584995]

約数ペア:

[(1, 257584995), (3, 85861665), (5, 51516999), (9, 28620555), (15, 17172333), (19, 13557105), (27, 9540185), (45, 5724111), (57, 4519035), (95, 2711421), (135, 1908037), (171, 1506345), (233, 1105515), (285, 903807), (431, 597645), (513, 502115), (699, 368505), (855, 301269), (1165, 221103), (1293, 199215), (2097, 122835), (2155, 119529), (2565, 100423), (3495, 73701), (3879, 66405), (4427, 58185), (6291, 40945), (6465, 39843), (8189, 31455), (10485, 24567), (11637, 22135), (13281, 19395)]