290915755

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 384531840

約数和(自身を除く): 93616085

約数列:

[1, 5, 13, 65, 71, 169, 355, 373, 845, 923, 1865, 2197, 4615, 4849, 10985, 11999, 24245, 26483, 59995, 63037, 132415, 155987, 315185, 344279, 779935, 819481, 1721395, 4097405, 4475627, 22378135, 58183151, 290915755]

約数ペア:

[(1, 290915755), (5, 58183151), (13, 22378135), (65, 4475627), (71, 4097405), (169, 1721395), (355, 819481), (373, 779935), (845, 344279), (923, 315185), (1865, 155987), (2197, 132415), (4615, 63037), (4849, 59995), (10985, 26483), (11999, 24245)]